Operating Segment Data - Summary of Profit (Loss) of Operating Segments (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Segment Reporting, Revenue Reconciling Item [Line Items]        
Total consolidated income (loss) from continuing operations before income taxes $ 53,438 $ 13,697 $ 61,725 $ 16,358
Other income (expense), net (3,271) (949) (1,852) (983)
Gain on equity method investment 50,414 11,784 58,680 9,518
Operating Segments [Member]        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Total consolidated income (loss) from continuing operations before income taxes 21,587 22,260 57,345 [1] 59,055 [1]
Operating Segments [Member] | 5.11 Tactical        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Total consolidated income (loss) from continuing operations before income taxes (1,794) 0 (1,794) [1] 0 [1]
Operating Segments [Member] | Ergobaby        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Total consolidated income (loss) from continuing operations before income taxes 4,671 5,717 9,101 [1] 16,764 [1]
Operating Segments [Member] | Liberty        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Total consolidated income (loss) from continuing operations before income taxes 2,417 3,545 9,879 [1] 7,713 [1]
Operating Segments [Member] | Manitoba Harvest        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Total consolidated income (loss) from continuing operations before income taxes 554 (3,955) (865) [1] (3,955) [1]
Operating Segments [Member] | ACI        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Total consolidated income (loss) from continuing operations before income taxes 5,759 6,295 17,241 [1] 18,782 [1]
Operating Segments [Member] | Arnold Magnetics        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Total consolidated income (loss) from continuing operations before income taxes 851 3,058 3,828 [1] 6,532 [1]
Operating Segments [Member] | Clean Earth        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Total consolidated income (loss) from continuing operations before income taxes 3,593 4,893 5,860 [1] 4,933 [1]
Operating Segments [Member] | Sterno Candle Lamp        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Total consolidated income (loss) from continuing operations before income taxes 5,536 2,707 14,095 [1] 8,286 [1]
Reconciliation of Segment to Consolidated [Member]        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Interest expense, net 4,376 11,205 (23,204) (24,047)
Other income (expense), net (3,271) (949) (1,852) (983)
Gain on equity method investment 50,414 11,784 58,680 9,518
Reconciliation of Segment to Consolidated [Member] | Corporate and Other        
Segment Reporting, Revenue Reconciling Item [Line Items]        
Total consolidated income (loss) from continuing operations before income taxes $ (10,916) $ (8,193) $ (29,244) [2] $ (27,185) [2]
[1] Segment profit (loss) represents operating income (loss).
[2] Primarily relates to management fees expensed and payable to CGM, and corporate overhead expenses