Disposed and Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Spin-off costs incurred to date	$ 46,384	$ 15,270	$ 0
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Settlement and curtailment	9,926	(2,462)	0
Revenue	403,688	1,010,135	751,808
Costs of Goods Sold	254,205	648,805	507,392
Gross profit	149,483	361,330	244,416
Selling, general and administrative expenses	147,261	262,353	236,510
Operating earnings	2,222	98,977	7,906
Other expense, net	9,048	949	3,218
(Loss) earnings from discontinued operations before taxes	(6,826)	98,028	4,688
Provision (benefit) for income taxes	14,052	33,026	(2,076)
(Loss) earnings from discontinued operations, net	(20,878)	65,002	6,764
Accounts Receivable		202,052
Inventory, net		201,591
Prepaid and other current assets		14,035
Disposal Group, Including Discontinued Operation, Assets, Current		417,678
Property, Plant and Equipment, net		211,832
Goodwill and intangible assets, net		1,232,843
Other assets and deferred charges		3,200
Disposal Group, Including Discontinued Operation, Assets	0	1,865,553
Accounts Payable		97,439
Other current liabilities		59,482
Disposal Group, Including Discontinued Operation, Liabilities, Current		156,921
Deferred income taxes		90,641
Other Liabilities		16,691
Disposal Group, Including Discontinued Operation, Liabilities	0	264,253
Proceeds from the sale of businesses	3,937	372,666	206,407
Gain (loss) on sale of businesses		2,196
Warn [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from the sale of businesses		250,283
Gain (loss) on sale of businesses		116,932
Performance Motorsports International [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from the sale of businesses		147,313
Gain (loss) on sale of businesses		88,402
Proceeds from Divestiture of Businesses, Net of Cash Divested		$ 118,706
Equity Method Investment, Ownership Percentage		25.00%
Noncontrolling Interest, Increase from Sale of Parent Equity Interest		$ 18,607
Accounts and Notes Receivable, Net		$ 10,000
Texas Hydraulics [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from the sale of businesses			47,300
Gain (loss) on sale of businesses			11,853
Tipper Tie [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from the sale of businesses			158,887
Gain (loss) on sale of businesses			$ 85,035
Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Settlement and curtailment	$ (9,200)