Business Combinations - Summary of Aggregate Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Business Acquisition [Line Items]
Goodwill	$ 3,453,340		$ 3,270,192
Total cash consideration, net of cash acquired	619,551	$ 898,113
Texas Panel Truss Businesses East Panel Truss Businesses Valley Truss Co., Inc. Odds-N-Ends, Inc., d/b/a HomCo Lumber & Hardware Trussway, LLC and its Subsidiaries Fulcrum Building Group Holdings, LLC and its Subsidiaries
Business Acquisition [Line Items]
Cash and cash equivalents	9,133
Accounts receivable	136,916
Other receivables	1,247
Inventories	70,711
Contract assets	163
Other current assets	4,700
Property, plant and equipment	48,931
Operating lease right-of-use assets	29,724
Goodwill	183,148
Intangible assets	246,400
Total assets	731,073
Accounts payable	19,864
Accrued liabilities	30,606
Contract liabilities	10,047
Operating lease liabilities	29,724
Long-term debt	2,163
Total liabilities	92,404
Total purchase consideration	638,669
Less: accrued contingent consideration and purchase price adjustments	(9,985)
Less: cash acquired	(9,133)
Total cash consideration, net of cash acquired	$ 619,551