View Filing Data

^[1]

1,392,191

1,073,506

Segment Reporting, Asset Reconciling Item [Line Items]

31,826

$ 27,338

91,281

$ 92,380

Operating Segments

Accounts Receivable, Net

308,627

215,108

^[1]

1,389,226

1,071,480

Operating Segments | 5.11 Tactical

30,747

26,077

87,878

88,659

Segment Reporting, Asset Reconciling Item [Line Items]

53,509

60,481

^[1]

320,777

324,068

Operating Segments | Ergobaby

5,323

4,338

15,882

34,882

Segment Reporting, Asset Reconciling Item [Line Items]

12,612

12,869

^[1]

102,251

105,672

Operating Segments | Liberty

2,086

3,068

6,374

9,386

Segment Reporting, Asset Reconciling Item [Line Items]

9,477

13,679

29,368

26,715

^[1]

Operating Segments | Manitoba Harvest

414

358

1,130

1,295

Segment Reporting, Asset Reconciling Item [Line Items]

6,596

5,663

92,307

95,046

^[1]

Operating Segments | Velocity Outdoor

1,599

1,891

4,800

4,922

Segment Reporting, Asset Reconciling Item [Line Items]

28,362

20,396

^[1]

149,681

129,033

Segment Reporting, Asset Reconciling Item [Line Items]

2,077

5,593

6,081

5,842

Operating Segments | ACI

8,356

^[1]

8,356

^[1]

6,525

^[1]

15,391

14,522

Operating Segments | Arnold

786

817

2,384

2,517

Segment Reporting, Asset Reconciling Item [Line Items]

Operating Segments | Arnold

1,572

1,452

4,656

4,962

Segment Reporting, Asset Reconciling Item [Line Items]

20,506

^[1]

20,506

^[1]

14,804

Operating Segments | Clean Earth

^[1]

64,843

66,979

Segment Reporting, Asset Reconciling Item [Line Items]

64,771

^[1]

64,771

^[1]

50,599

199,134

^[1]

199,134

^[1]

183,508

Operating Segments | Foam

6,349

5,687

17,392

16,140

Segment Reporting, Asset Reconciling Item [Line Items]

^[1]

25,012

^[1]

159,748

Operating Segments | Sterno

2,957

7,724

Segment Reporting, Asset Reconciling Item [Line Items]

92,535

40,087

Operating Segments | Sterno

255,726

125,937

^[1]

Segment Reporting, Asset Reconciling Item [Line Items]

Reconciliation of Segment to Consolidated | Amortization Of Debt Issuance Costs And Original Issue Discount

7,584

2,873

21,455

8,713

Segment Reporting, Asset Reconciling Item [Line Items]

Reconciliation of Segment to Consolidated | Corporate and other

1,079

$ 1,261

3,403

$ 3,721

Segment Reporting, Asset Reconciling Item [Line Items]

^[1]

$ 2,965

$ 2,026

[1]	Does not include accounts receivable balances per schedule above or goodwill balances - refer to Note F - "Goodwill and Other Intangible Assets".

Property, Plant and Equipment and Inventory - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 11,100	$ 8,700	$ 31,272	$ 24,505
Property, plant and equipment, gross	369,069		369,069		$ 285,809
Construction in process	17,373		17,373		18,153
Less: accumulated depreciation	(142,799)		(142,799)		(112,728)
Total	226,270		226,270		173,081
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	215,575		215,575		178,187
Furniture, fixtures and other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	45,283		45,283		28,824
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	43,098		43,098		20,630
Buildings and land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 47,740		$ 47,740		$ 40,015

Property, Plant and Equipment and Inventory - Summary of Inventory (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 11,100	$ 8,700	$ 31,272	$ 24,505
Raw materials	67,795		67,795		$ 36,124
Work-in-process	17,275		17,275		13,921
Finished goods	261,558		261,558		205,512
Less: obsolescence reserve	(18,080)		(18,080)		(8,629)
Total	$ 328,548		$ 328,548		$ 246,928

Goodwill and Other Intangible Assets - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) Reporting_Unit	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Jan. 01, 2018 USD ($)
Goodwill And Other Intangible Assets [Line Items]
Goodwill	$ 736,947		$ 736,947		$ 531,689	$ 531,689
Goodwill, Acquired During Period			206,318
Goodwill - gross carrying amount	768,100		768,100		562,842
Goodwill, estimated impairment loss	31,153		31,153		$ 31,153
Impairment expense	0	$ 0	0	$ 8,864
Amortization expense	17,562	$ 14,167	49,280	$ 39,256
Velocity Outdoor
Goodwill And Other Intangible Assets [Line Items]
Goodwill	136,312		136,312			49,352
Goodwill, Other Increase (Decrease)			70
Goodwill, Acquired During Period			86,890
ACI
Goodwill And Other Intangible Assets [Line Items]
Goodwill	58,019		58,019			58,019
5.11 Tactical
Goodwill And Other Intangible Assets [Line Items]
Goodwill	92,966		92,966			92,966
Ergobaby
Goodwill And Other Intangible Assets [Line Items]
Goodwill	61,031		61,031			61,031
Liberty
Goodwill And Other Intangible Assets [Line Items]
Goodwill	32,828		32,828			32,828
Manitoba Harvest
Goodwill And Other Intangible Assets [Line Items]
Goodwill	39,894		39,894			41,024
Goodwill, Foreign Currency Translation Gain (Loss)			(1,130)
Impairment assessment assumptions weighted average cost of capital					11.70%
Goodwill - gross carrying amount					$ 6,300
Arnold
Goodwill And Other Intangible Assets [Line Items]
Goodwill	26,903		26,903			26,903
Goodwill, Impairment Loss			$ 0
Number of reporting units at Arnold Subsidiary \| Reporting_Unit			3
Impairment assessment assumptions weighted average cost of capital			12.60%
Flexmag
Goodwill And Other Intangible Assets [Line Items]
Impairment assessment assumptions weighted average cost of capital			12.40%
Clean Earth
Goodwill And Other Intangible Assets [Line Items]
Goodwill	154,201		$ 154,201			119,099
Goodwill, Acquired During Period			35,102
Foam
Goodwill And Other Intangible Assets [Line Items]
Goodwill, Acquired During Period			72,708
Sterno
Goodwill And Other Intangible Assets [Line Items]
Goodwill	53,436		53,436			41,818
Goodwill, Acquired During Period			11,618
Corporate Segment [Member]
Goodwill And Other Intangible Assets [Line Items]
Goodwill	$ 8,649		$ 8,649			$ 8,649
Goodwill \| Fair Value, Measurements, Nonrecurring
Goodwill And Other Intangible Assets [Line Items]
Impairment expense					8,864
Goodwill \| Fair Value, Measurements, Nonrecurring \| Manitoba Harvest
Goodwill And Other Intangible Assets [Line Items]
Impairment expense					6,200
Trade Names [Member] \| Fair Value, Measurements, Nonrecurring
Goodwill And Other Intangible Assets [Line Items]
Impairment expense					2,273
Trade Names [Member] \| Fair Value, Measurements, Nonrecurring \| Manitoba Harvest
Goodwill And Other Intangible Assets [Line Items]
Impairment expense					2,300
Trade Names [Member] \| Manitoba Harvest
Goodwill And Other Intangible Assets [Line Items]
Goodwill - gross carrying amount					$ 2,300

Goodwill and Other Intangible Assets - Summary of Reconciliation of Change in Carrying Value of Goodwill (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) Reporting_Unit	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($)	Jan. 01, 2018 USD ($)	Dec. 31, 2017 USD ($)
Goodwill [Line Items]
Goodwill - gross carrying amount					$ 768,100		$ 562,842
Accumulated impairment losses					(31,153)		(31,153)
Goodwill - net carrying amount	$ 736,947		$ 531,689		736,947	$ 531,689	531,689
Goodwill [Roll Forward]
Balance as of January 1, 2017	736,947		736,947
Acquisitions			206,318
Impairment expense	0	$ 0	0	$ (8,864)
Balance as of March 31, 2017			531,689
Corporate Segment [Member]
Goodwill [Line Items]
Goodwill - net carrying amount	8,649		8,649		8,649	8,649
Goodwill [Roll Forward]
Balance as of January 1, 2017	8,649		8,649
5.11 Tactical
Goodwill [Line Items]
Goodwill - net carrying amount	92,966		92,966		92,966	92,966
Goodwill [Roll Forward]
Balance as of January 1, 2017	92,966		92,966
Ergobaby
Goodwill [Line Items]
Goodwill - net carrying amount	61,031		61,031		61,031	61,031
Goodwill [Roll Forward]
Balance as of January 1, 2017	61,031		61,031
Liberty
Goodwill [Line Items]
Goodwill - net carrying amount	32,828		32,828		32,828	32,828
Goodwill [Roll Forward]
Balance as of January 1, 2017	32,828		32,828
Manitoba Harvest
Goodwill [Line Items]
Goodwill - gross carrying amount							$ 6,300
Goodwill - net carrying amount	39,894		39,894		39,894	41,024
Goodwill [Roll Forward]
Balance as of January 1, 2017	39,894		39,894
ACI
Goodwill [Line Items]
Goodwill - net carrying amount	58,019		58,019		58,019	58,019
Goodwill [Roll Forward]
Balance as of January 1, 2017	58,019		58,019
Arnold
Goodwill [Line Items]
Goodwill - net carrying amount	26,903		26,903		26,903	26,903
Goodwill [Roll Forward]
Balance as of January 1, 2017	26,903		$ 26,903
Number of reporting units at Arnold Subsidiary \| Reporting_Unit			3
Clean Earth
Goodwill [Line Items]
Goodwill - net carrying amount	154,201		$ 154,201		154,201	119,099
Goodwill [Roll Forward]
Balance as of January 1, 2017	154,201		154,201
Acquisitions			35,102
Sterno
Goodwill [Line Items]
Goodwill - net carrying amount	53,436		53,436		$ 53,436	$ 41,818
Goodwill [Roll Forward]
Balance as of January 1, 2017	$ 53,436		53,436
Acquisitions			$ 11,618

Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Detail) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	$ 915,179,000	$ 694,691,000
Total accumulated amortization	(236,016,000)	(185,441,000)
Finite-Lived Intangible Assets, Net	679,163,000	509,250,000
Trade names, not subject to amortization	70,909,000	71,267,000
Intangible Assets, Gross (Excluding Goodwill)	986,088,000	765,958,000
Total intangibles, net	750,072,000	580,517,000
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	538,148,000	338,719,000
Total accumulated amortization	(130,653,000)	(102,271,000)
Finite-Lived Intangible Assets, Net	407,495,000	236,448,000.000
Technology and patents
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	50,714,000	49,075,000
Total accumulated amortization	(25,751,000)	(22,492,000)
Finite-Lived Intangible Assets, Net	24,963,000	26,583,000.000
Trade name
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	194,814,000	182,976,000
Total accumulated amortization	(33,337,000)	(22,518,000)
Finite-Lived Intangible Assets, Net	161,477,000	160,458,000.000
Licensing and non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	8,055,000	7,965,000
Total accumulated amortization	(6,836,000)	(6,488,000)
Finite-Lived Intangible Assets, Net	1,219,000	1,477,000.000
Permits and Airspace
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	122,722,000	115,230,000
Total accumulated amortization	(38,713,000)	(31,026,000)
Finite-Lived Intangible Assets, Net	84,009,000	84,204,000.000
Distributor relations and other
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	726,000	726,000
Total accumulated amortization	(726,000)	(646,000)
Finite-Lived Intangible Assets, Net	$ 0	$ 80,000.000

Goodwill and Other Intangible Assets - Summary of Estimated Charges to Amortization Expense of Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 17,562	$ 14,167	$ 49,280	$ 39,256
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2018	19,784		19,784
2019	79,707		79,707
2020	70,086		70,086
2021	60,373		60,373
2022	$ 58,694		$ 58,694

Warranties - Change in Carrying Value of Company's Warranty Liability (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]
Product Warranty Accrual, Beginning Balance	$ 2,197	$ 1,258
Accrual	2,252	1,982
Warranty payments	(2,417)	(1,552)
Product Warranty Accrual, Ending balance	2,186	2,197
Velocity Outdoor
Schedule of Equity Method Investments [Line Items]
Other (1)	$ 154	$ 509

Debt - Additional Information (Detail) - USD ($)		1 Months Ended	9 Months Ended
Debt - Additional Information (Detail) - USD ($)	Sep. 16, 2014	Mar. 31, 2014	Sep. 30, 2018	Sep. 30, 2017	Apr. 18, 2018	Dec. 31, 2017	Jun. 06, 2014
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 366,700,000
Long-term Debt			1,109,348,000			$ 590,032,000
Payments of debt issuance costs			14,887,000	$ 1,433,000
Accumulated amortization			5,593,000			10,250,000
Deferred debt issuance costs, less accumulated amortization			5,593,000			2,783,000
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term Debt			233,000,000			42,000,000
FOX Credit Facility \| Prime Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%
FOX Credit Facility \| Prime Rate \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate		1.50%
Term Loan Facility
Debt Instrument [Line Items]
Long-term Debt			497,500,000			559,973,000
Deferred debt issuance costs, less accumulated amortization			21,152,000			11,941,000
2014 Credit Agreement \| Revolving Credit Facility \| London Interbank Offered Rate (LIBOR) \| Minimum
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					1.50%
2014 Credit Agreement \| Revolving Credit Facility \| London Interbank Offered Rate (LIBOR) \| Maximum
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					2.50%
2014 Credit Agreement \| Revolving Credit Facility \| Base Rate \| Minimum
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					0.50%
2014 Credit Agreement \| Revolving Credit Facility \| Base Rate \| Maximum
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					1.50%
2014 Credit Agreement \| Letter of Credit
Debt Instrument [Line Items]
Credit facility obtained							$ 100,000,000
2014 Credit Agreement \| Line of Credit
Debt Instrument [Line Items]
Credit facility obtained							25,000,000
2014 Credit Agreement \| Term Loan
Debt Instrument [Line Items]
Original issue discount					99.75%
Debt Instrument, Quarterly Payment, Amount					$ 1,250,000
2014 Credit Agreement \| Term Loan \| Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					500,000,000
Deferred debt issuance costs, less accumulated amortization					7,800,000
Line of Credit Facility, Maximum Borrowing Capacity, Additional Amounts Available For Borrowing					250,000,000
2014 Credit Agreement \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					600,000,000
2014 Revolving Credit Facility \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							550,000,000
2016 Incremental Term Loan \| Term Loan
Debt Instrument [Line Items]
Credit facility obtained						250,000,000
2014 Term Loan \| Term Loan
Debt Instrument [Line Items]
Credit facility obtained							$ 325,000,000
Letter of Credit
Debt Instrument [Line Items]
Letter of credit outstanding			300,000
Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Debt Issuance, Aggregate Principal Amount					$ 400,000,000
Payments of debt issuance costs			7,000,000
Debt Instrument, Interest Rate, Stated Percentage					8.00%
Interest Rate Swap
Debt Instrument [Line Items]
Total fair value			(14,000)			(6,107,000)
Interest Rate Swap \| Other non-current assets
Debt Instrument [Line Items]
Total fair value			539,000			0
Interest Rate Swap \| Other current liabilities
Debt Instrument [Line Items]
Total fair value			(553,000)			(2,468,000)
New Interest Rate Swap
Debt Instrument [Line Items]
Notional amount	$ 220,000,000
Interest rate on notional amount	2.97%
Interest rate swap agreement with bank, agreement period	3 months
Carrying Value \| Fair Value, Measurements, Recurring \| New Interest Rate Swap
Debt Instrument [Line Items]
Interest Rate Swap			$ 14,000			$ 6,107,000

Debt - Issuance Costs (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
Debt - Issuance Costs (Details) - USD ($) $ in Thousands	Apr. 18, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Payments of debt issuance costs				$ 14,887	$ 1,433
Deferred debt issuance costs, less accumulated amortization		$ 5,593		5,593		$ 2,783
Amortization of debt issuance costs		$ (927)	$ (1,004)	(2,978)	$ (2,940)
Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Payments of debt issuance costs				$ 7,000
2014 Credit Agreement \| Revolving Credit Facility \| Term Loan
Debt Instrument [Line Items]
Debt issuance costs capitalized	$ 8,400
Deferred debt issuance costs, less accumulated amortization	7,800
Write-off of previously capitalized debt issuance costs	600
Amortization of debt issuance costs	$ (600)

Debt - Summary of Debt Holdings (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Apr. 18, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Senior Notes	$ 400,000		$ 0
Total debt	1,109,348		590,032
Less: unamortized discounts and debt issuance costs	(5,593)		(2,783)
Current portion, long-term debt	(5,000)		(5,685)
Long term debt	1,104,348		584,347
Long-term Debt, Fair Value	416,000
Revolving Credit Facility
Debt Instrument [Line Items]
Total debt	233,000		42,000
Term Loan Facility
Debt Instrument [Line Items]
Total debt	497,500		559,973
Less: unamortized discounts and debt issuance costs	(21,152)		(11,941)
Current portion, long-term debt	(5,000)		(5,685)
Interest Rate Swap
Debt Instrument [Line Items]
Total fair value	(14)		(6,107)
Interest Rate Swap \| Other Noncurrent Assets [Member]
Debt Instrument [Line Items]
Total fair value	539		0
Interest Rate Swap \| Other current liabilities
Debt Instrument [Line Items]
Total fair value	(553)		(2,468)
Interest Rate Swap \| Other noncurrent liabilities
Debt Instrument [Line Items]
Total fair value	$ 0		$ (3,639)
Senior Notes Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		8.00%

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands							2 Months Ended	3 Months Ended											4 Months Ended		9 Months Ended		12 Months Ended
	Oct. 30, 2018	Jul. 30, 2018	Apr. 30, 2018	Jan. 30, 2018	Oct. 30, 2017	Jun. 28, 2017	Jun. 29, 2018	Oct. 29, 2018	Sep. 30, 2018	Jun. 30, 2018	Apr. 29, 2018	Mar. 31, 2018	Jan. 29, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 29, 2018	Oct. 29, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	Oct. 25, 2018	Jul. 26, 2018	Apr. 26, 2018	Mar. 13, 2018	Jan. 25, 2018	Oct. 26, 2017	Jul. 27, 2017	Apr. 27, 2017	Jan. 26, 2017
Stockholders Equity [Line Items]
Income (loss) from continuing operations									$ 4,726						$ 7,706						$ 312	$ (18,351)
Distribution Expense, Allocation Interests									0						0						0	39,120
Distribution Expense, Preferred Shareholders									4,773						0						8,398	0
Accrued Distribution Preferred Shareholders									$ 1,619						0						$ 1,619	0
Trust shares, authorized (shares)									500,000,000					500,000,000							500,000,000		500,000,000
Preferred stock, authorized (shares)									50,000,000					50,000,000							50,000,000		50,000,000
Issuance of Trust preferred shares, net of offering costs									$ 96,504						96,417						$ 96,504	96,417
Trust shares, voting rights																					One vote per share
Holding Event, anniversary since acquisition																					5 years
Distribution declared per share																									$ 0.36	$ 0.36		$ 0.36	$ 0.36	$ 0.36	$ 0.36	$ 0.36
Distributions paid									21,564	$ 21,564		$ 21,564		$ 21,564	21,564	$ 21,564	$ 21,564	$ 21,564			$ 64,692	64,692
Distribution To Shareholders																					64,692	25,834
Net Income Loss Available To Trust Stock Net of Distributions									$ (1,666)						7,706						$ (9,705)	(57,471)
Series B
Stockholders Equity [Line Items]
Preferred stock, authorized (shares)									4,000,000												4,000,000
Stock Issued During Period, Shares, New Issues																							96,500,000
Issuance of Trust preferred shares, net of offering costs									$ 96,504					0							$ 96,504		$ 0
Preferred Stock, Redemption Price Per Share																											$ 25.00
Series A Preferred Stock
Stockholders Equity [Line Items]
Preferred Stock, Liquidation Preference Per Share						$ 25.00
Proceeds from Issuance of Preferred Stock and Preference Stock						$ 100,000
Preferred Shares Redemption, Fundamental Change, Increase In Distribution Rate Per Annum Following Notice Period																							5.00%
Preferred Stock, Cash Distributions Paid, Per Share		$ 453.12500000	$ 453.12500000	$ 453.12500000	$ 614.23611000
Series A
Stockholders Equity [Line Items]
Preferred stock, authorized (shares)									4,000,000												4,000,000
Issuance of Trust preferred shares, net of offering costs									$ 96,417					$ 96,417							$ 96,417		$ 96,417
Distribution To Shareholders																					8,398	64,692
Series B [Member]
Stockholders Equity [Line Items]
Preferred Stock, Cash Distributions Paid, Per Share		$ 740.00000000
Subsequent Event
Stockholders Equity [Line Items]
Distribution declared per share																								$ 0.36
Subsequent Event \| Series A Preferred Stock
Stockholders Equity [Line Items]
Preferred Stock, Cash Distributions Paid, Per Share	$ 453.12500000
Subsequent Event \| Series B [Member]
Stockholders Equity [Line Items]
Preferred Stock, Cash Distributions Paid, Per Share	$ 492.18750000
FOX
Stockholders Equity [Line Items]
Profit allocation payment from Equity Method Investment															$ 25,800
Minimum \| Series A Preferred Stock
Stockholders Equity [Line Items]
Preferred Stock, Redemption Price Per Share														$ 25.25									$ 25.25
Accumulated Deficit
Stockholders Equity [Line Items]
Distribution To Shareholders																					64,692	25,834
Accumulated Deficit \| Series A
Stockholders Equity [Line Items]
Distribution To Shareholders																					$ 8,398	$ 64,692
Trust Common Shares
Stockholders Equity [Line Items]
Stock Issued During Period, Shares, New Issues																							96,400,000
Series B
Stockholders Equity [Line Items]
Distribution To Shareholders																			$ 2,960
Series B \| Subsequent Event
Stockholders Equity [Line Items]
Distribution To Shareholders								$ 1,969
Series A
Stockholders Equity [Line Items]
Distribution To Shareholders							$ 1,813				$ 1,813		$ 1,813							$ 2,457
Series A \| Subsequent Event
Stockholders Equity [Line Items]
Distribution To Shareholders								$ 1,813

Stockholders' Equity - Summary of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Income Loss Available To Trust Stock Net of Distributions	$ (1,666)	$ 7,706	$ (9,705)	$ (57,471)
Less: Effect of contribution based profit - Holding Event	2,404	1,620	3,719	3,954
Income (loss) from continuing operation attributable to common shares of Holdings	$ (4,070)	$ 6,086	$ (13,424)	$ (61,425)
Basic and diluted weighted average shares outstanding (shares)	59,900	59,900	59,900	59,900
Continuing operations (usd per share)	$ (0.07)	$ 0.10	$ (0.22)	$ (1.03)
Discontinued operations (usd per share)	0.00	0.00	0.02	0.01
Earnings Per Share, Basic and Diluted (usd per share)	$ 0	$ 0	$ 0	$ 0
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of income tax	$ 0	$ 0	$ 1,165	$ 340

Noncontrolling Interest - Company's Ownership Percentage of its Majority Owned Operating Segments and Related Noncontrolling Interest (Detail) - USD ($)
$ in Thousands

Sep. 30, 2018

Dec. 31, 2017

Velocity Outdoor Ownership [Member] | % Ownership Primary

$ 57,709

$ 52,791

Noncontrolling Interest, Ownership Percentage by Parent

^[1]

98.80%

^[1]

99.40%

Velocity Outdoor Ownership [Member] | % Ownership Fully Diluted

Noncontrolling Interest, Ownership Percentage by Parent

^[1]

89.20%

^[1]

94.20%

5.11 Tactical | % Ownership Primary

Noncontrolling Interest, Ownership Percentage by Parent

^[1]

97.50%

^[1]

97.50%

5.11 Tactical | % Ownership Fully Diluted

Noncontrolling Interest, Ownership Percentage by Parent

^[1]

85.50%

^[1]

87.70%

Ergobaby | % Ownership Primary

Noncontrolling Interest, Ownership Percentage by Parent

^[1]

82.70%

^[1]

82.10%

Ergobaby | % Ownership Fully Diluted

Noncontrolling Interest, Ownership Percentage by Parent

^[1]

76.60%

^[1]

76.80%

Liberty | % Ownership Primary

Liberty | % Ownership Fully Diluted

^[1]

88.60%

Manitoba Harvest | % Ownership Primary

^[1]

85.20%

84.70%

Manitoba Harvest | % Ownership Fully Diluted

^[1]

76.60%

ACI | % Ownership Primary

^[1]

68.00%

67.00%

ACI | % Ownership Fully Diluted

^[1]

69.40%

Arnold | % Ownership Primary

^[1]

69.20%

Arnold | % Ownership Fully Diluted

^[1]

96.70%

Clean Earth | % Ownership Primary

^[1]

79.40%

84.70%

Clean Earth | % Ownership Fully Diluted

^[1]

97.50%

Foam Fabricators | % Ownership Primary

^[1]

79.80%

Foam Fabricators | % Ownership Fully Diluted

^[1]

100.00%

Sterno | % Ownership Primary

^[1]

91.50%

Sterno | % Ownership Fully Diluted

^[1]

100.00%

^[1]

88.50%

89.50%

Sterno

$ (2,471)

$ 2,045

Arnold

1,474

1,368

Velocity Outdoor

2,458

1,373

Manitoba Harvest

11,507

11,725

Liberty

3,348

3,254

Ergobaby

25,046

23,416

5.11 Tactical

9,655

8,003

ACI

(2,580)

(5,850)

Clean Earth

Allocation Interests [Member]

8,578

7,357

100

$ 100

Foam Fabricators

$ 594

[1]	The principal difference between primary and diluted percentages of our operating segments is due to stock option issuances of operating segment stock to management of the respective businesses.

Fair Value Measurement - Summary of Liabilities Carried at Fair Value Measured on Recurring Basis (Detail) - USD ($)

3 Months Ended

12 Months Ended

Sep. 30, 2018

Dec. 31, 2017

Apr. 18, 2018

Feb. 26, 2018

Jan. 31, 2018

Fair Value, Measurements, Recurring | Carrying Value

$ (12,357,000)

$ (178,000)

$ (5,010,000)

(178,000)

^[1]

12,179,000

Fair Value, Measurements, Recurring | Level 1 | Fair Value

(12,371,000)

(6,285,000)

^[1]

Fair Value, Measurements, Recurring | Level 2 | Fair Value

^[1]

(14,000)

(6,107,000)

Fair Value, Measurements, Recurring | Level 3 | Fair Value

(14,000)

(6,107,000)

(178,000)

^[1]

12,179,000

New Interest Rate Swap | Fair Value, Measurements, Recurring | Carrying Value

(12,357,000)

(178,000)

(14,000)

(6,107,000)

Rimports

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases

$ 25,000,000

(4,100,000)

Northern International, Inc.

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Payment of contingent consideration

$ 3,780,000

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases

$ (382,000)

Senior Notes Due 2026 [Member]