Acquisitions, Goodwill And Other Intangible Assets (Schedule of Business Acquisitions) (Details) - USD ($) $ in Thousands			1 Months Ended								12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Nov. 30, 2022	Mar. 31, 2022	Oct. 31, 2021	Sep. 30, 2021	Apr. 30, 2021	Dec. 31, 2020	Nov. 30, 2020	Jan. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition
Cash consideration											$ 108,470	$ 194,107	$ 182,130
Net Assets Acquired
Goodwill	$ 567,063	$ 543,180						$ 454,728			567,063	543,180	$ 454,728
Measurement Period Adjustments
Goodwill (not tax deductible)											13,287	9,496
Stampede
Business Acquisition
Total fair value of consideration given					$ 39,700
Challenger
Business Acquisition
Total fair value of consideration given									$ 35,000
Polyplastic
Business Acquisition
Cash consideration										$ 95,800
Furrion
Business Acquisition
Cash consideration	50,534	50,534				$ 50,500
Effective settlement of Receivable from Furrion	34,956	34,956				35,000
Discounted value of fixed deferred consideration	61,191	61,191
Total fair value of consideration given	146,681	146,681				$ 146,700
Net Assets Acquired
Other assets acquired and liabilities assumed, net	(11,001)	(9,518)									(11,001)	(9,518)
Total fair value of net assets acquired	87,399	100,682									87,399	100,682
Goodwill	59,282	45,999									59,282	45,999
Measurement Period Adjustments
Other tangible assets											(1,483)
Total fair value of net assets acquired											(13,283)
Goodwill (not tax deductible)											13,283
Schaudt
Business Acquisition
Total fair value of consideration given							$ 29,400
Ranch Hand
Business Acquisition
Cash consideration							$ 56,900
Veada
Business Acquisition
Total fair value of consideration given								$ 69,000
Girard Systems and Girard Products LLC
Business Acquisition
Cash consideration				$ 50,000
Discounted value of fixed deferred consideration				20,000
Total fair value of consideration given				70,664
Net Assets Acquired
Other assets acquired and liabilities assumed, net				14,442
Total fair value of net assets acquired				57,962
Goodwill				12,702
Measurement Period Adjustments
Payments to Acquire Businesses, Net of Cash Acquired, Including Additional Amount Paid				50,664
Way Interglobal Network LLC
Business Acquisition
Cash consideration			$ 54,800
Discounted value of fixed deferred consideration			2,000
Total fair value of consideration given			54,761
Net Assets Acquired
Other assets acquired and liabilities assumed, net			36,783
Total fair value of net assets acquired			49,783
Goodwill			4,978
Measurement Period Adjustments
Payments to Acquire Businesses, Net of Cash Acquired, Including Additional Amount Paid			52,761
Customer relationships | Furrion
Net Assets Acquired
Identifiable intangible assets	55,700	66,300									55,700	66,300
Measurement Period Adjustments
Intangible assets											(10,600)
Customer relationships | Girard Systems and Girard Products LLC
Net Assets Acquired
Identifiable intangible assets				35,700
Other intangible assets | Furrion
Net Assets Acquired
Identifiable intangible assets	$ 42,700	$ 43,900									42,700	$ 43,900
Measurement Period Adjustments
Intangible assets											$ (1,200)
Other intangible assets | Girard Systems and Girard Products LLC
Net Assets Acquired
Identifiable intangible assets				$ 7,820
Other intangible assets | Way Interglobal Network LLC
Net Assets Acquired
Identifiable intangible assets			$ 13,000