Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2022

Accounting Policies [Abstract]

Summary of Concentration of Credit Risk

Revenue from the single Government Solutions customer exceeding 10% of total revenue is presented below:

	Three Months Ended March 31,
	2022			2021
City of New York Department of Transportation		19.3	%		24.4	%

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Significant customer revenue concentrations generated through the Company’s Commercial Services partners as a percent of total revenue are presented below:

	Three Months Ended March 31,
	2022			2021
Hertz Corporation		11.1	%		13.8	%
Avis Budget Group, Inc.		11.4	%		11.2	%
Enterprise Holdings, Inc.		9.0	%		14.5	%

Summary of Activity in Allowance for Credit Loss

The following presents the activity in the allowance for credit losses for the three months ended March 31, 2022 and 2021, respectively:

($ in thousands)	Commercial Services (Driver-billed) (1)			Commercial Services (All other)			Government Solutions		Parking Solutions			Total
Balance at January 1, 2022	$	5,397		$	3,092		$	3,649	$	—		$	12,138
Credit loss expense		2,868			246			232		159			3,505
Write-offs, net of recoveries		(1,221	)		(15	)		—		(108	)		(1,344	)
Balance at March 31, 2022	$	7,044		$	3,323		$	3,881	$	51		$	14,299

($ in thousands)	Commercial Services (Driver-billed) (1)			Commercial Services (All other)		Government Solutions			Total
Balance at January 1, 2021	$	3,210		$	4,277	$	3,984		$	11,471
Credit loss expense		2,252			143		7			2,402
Write-offs, net of recoveries		(1,722	)		2		(21	)		(1,741	)
Balance at March 31, 2021	$	3,740		$	4,422	$	3,970		$	12,132