Acquisitions - Total Consideration and Net Assets Acquired (Details) - USD ($)	Aug. 30, 2021	Aug. 09, 2021	Mar. 11, 2020
L&M
Total consideration and net assets acquired
Total consideration, net of cash	$ 62,400,000
Plus: Cash acquired in acquisition	0
Net assets acquired	$ 62,400,000
Pacific Pipe
Total consideration and net assets acquired
Total consideration, net of cash		$ 103,800,000
Plus: Cash acquired in acquisition		1,700,000
Net assets acquired		$ 105,500,000
R&B
Total consideration and net assets acquired
Total consideration, net of cash			$ 207,400,000
Plus: Cash acquired in acquisition			2,700,000
Less: Working capital adjustment			(1,300,000)
Total consideration			208,800,000
Less: non-cash contingent consideration			0
Net assets acquired			$ 208,800,000