Acquisitions - Pro Forma Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021
Pro forma results
Tax rate	27.50%	27.50%
FIH
Pro forma results
Revenue	$ 881,610	$ 1,704,385
Income before provision for income taxes	51,314	67,239
Net income	$ 37,321	$ 48,746
Weighted average common shares outstanding:
Basic (in shares)	53,891	51,796
Diluted (in shares)	54,466	52,318
Earnings per share:
Basic (in dollars per share)	$ 0.69	$ 0.94
Diluted (in dollars per share)	$ 0.69	$ 0.93