Acquisitions, Goodwill And Other Intangible Assets (Schedule of Business Acquisitions) (Details) - USD ($) $ in Thousands	1 Months Ended		9 Months Ended
	Sep. 30, 2021	Apr. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Business Acquisition [Line Items]
Cash consideration, net of cash acquired			$ 154,544	$ 94,909
Goodwill	$ 568,885		568,885		$ 454,728
Furrion
Business Acquisition [Line Items]
Cash consideration, net of cash acquired	50,534
Effective settlement of receivable	34,956
Discounted value of fixed deferred consideration	61,191
Purchase price	146,681
Identifiable intangible assets	95,000		95,000
Other assets acquired and liabilities assumed, net	5,811		5,811
Tax liabilities	(28,704)		(28,704)
Total fair value of net assets acquired	72,107		72,107
Goodwill	$ 74,574		$ 74,574
Schaudt
Business Acquisition [Line Items]
Purchase price		$ 29,383
Net tangible assets, excluding pension obligation		564
Total fair value of net assets acquired		13,064
Goodwill		16,319
Ranch Hand
Business Acquisition [Line Items]
Cash consideration, net of cash acquired		56,857
Contingent consideration		3,000
Purchase price		59,857
Net tangible assets, excluding pension obligation		16,923
Total fair value of net assets acquired		50,223
Goodwill		9,634
Customer Relationships | Schaudt
Business Acquisition [Line Items]
Identifiable intangible assets		10,000
Customer Relationships | Ranch Hand
Business Acquisition [Line Items]
Identifiable intangible assets		24,200
Other intangible assets | Schaudt
Business Acquisition [Line Items]
Identifiable intangible assets		2,500
Other intangible assets | Ranch Hand
Business Acquisition [Line Items]
Identifiable intangible assets		$ 9,100