Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Related Party Transaction [Line Items]
Selling, general and administrative expenses	$ 137,369	$ 122,247	$ 277,995	$ 238,397
Related Party | Related Party, Managed Services Agreements
Related Party Transaction [Line Items]
Selling, general and administrative expenses	$ 300	$ 0	$ 700	$ 100
Majority Shareholder | Distribution Solutions Group | LKCM Headwater Operations, LLC
Related Party Transaction [Line Items]
Shares owned by related party (in shares)	36,357,588		36,357,588
Noncontrolling ownership (as a percent)	77.70%		77.70%