Significant Accounting Policies - Summary of Activity in Allowance for Credit Loss (Details) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021
Accounts Notes And Loans Receivable [Line Items]
Balance		$ 12,138	$ 11,471
Credit loss expense		7,036	3,863
Write-offs, net of recoveries		(2,082)	(2,658)
Balance		17,092	12,676
Commercial Services (Driver Billed)
Accounts Notes And Loans Receivable [Line Items]
Balance	[1]	5,397	3,210
Credit loss expense	[1]	5,879	4,877
Write-offs, net of recoveries	[1]	(1,902)	(2,613)
Balance	[1]	9,374	5,474
Commercial Services (All Other)
Accounts Notes And Loans Receivable [Line Items]
Balance		3,092	4,277
Credit loss expense		428	(989)
Write-offs, net of recoveries		(100)	(24)
Balance		3,420	3,264
Government Solutions
Accounts Notes And Loans Receivable [Line Items]
Balance		3,649	3,984
Credit loss expense		397	(25)
Write-offs, net of recoveries		(12)	(21)
Balance		4,034	$ 3,938
Parking Solutions [Member]
Accounts Notes And Loans Receivable [Line Items]
Balance		0
Credit loss expense		332
Write-offs, net of recoveries		(68)
Balance		$ 264

[1] Driver-billed consists of receivables from drivers of rental cars and fleet management companies for which the Company bills on behalf of its customers. Receivables not collected from drivers within a defined number of days are transferred to customers subject to applicable bad debt sharing agreements.