Operations by Business Segment and Geographic Information Geographic Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenues	$ 1,693,481	$ 1,511,081	$ 1,378,053
Long-lived assets, net	774,380	513,957	424,686
United States
Segment Reporting Information [Line Items]
Revenues	1,594,546	1,426,019	1,292,496
Long-lived assets, net	741,294	484,740	397,624
Canada
Segment Reporting Information [Line Items]
Revenues	98,935	85,062	85,557
Long-lived assets, net	$ 33,086	$ 29,217	$ 27,062