Business Combinations - Pro Forma Results of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Business Acquisition, Pro Forma Information [Abstract]
Net revenue	$ 516,057	$ 465,639	$ 1,474,979	$ 1,356,619
Net income	$ 35,574	$ 30,876	$ 93,262	$ 77,604
Basic net income per share (in USD per share)	$ 1.21	$ 1.05	$ 3.18	$ 2.63
Diluted net income per share (in USD per share)	$ 1.20	$ 1.04	$ 3.15	$ 2.61