Business Combinations - Net Assets Acquired (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2019
Business Acquisition [Line Items]
Contingent earn-out consideration arrangement (net)	$ 0	$ 2,557
Additions for current year acquisitions	949,037	$ 939,249	$ 952,404
AssureEdge And Trimax
Business Acquisition [Line Items]
Cash	13,774
Consideration payable	1,568
Contingent earn-out consideration arrangement (net)	2,560
Total consideration transferred	17,902
Recognition of noncontrolling interest of joint ventures	1,350
Total equity components recorded	1,350
Total consideration transferred and equity components recorded	19,252
Cash, net of adjustment	1,358
Other current assets	2,812
Property, plant, and equipment	3,451
Other long-term assets	103
Intangible assets, definite-lived	1,670
Current and other liabilities, net of consideration transferred	(3,264)
Net assets acquired, excludes goodwill	6,130
Additions for current year acquisitions	13,122
Total net assets acquired	$ 19,252