Prepaid Expenses and Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Prepaid Expenses And Other Current Assets [Line Items]
Software maintenance contracts	$ 11,629	$ 10,745
Deferred project costs	4,927	11,614
Prepaid cloud computing arrangement fees	4,453	2,145
Insurance	2,286	2,335
Postage	2,078	1,906
Contract assets	1,677	2,661
Guarantee deposits	850	2,648
Other	2,763	2,013
Prepaid expenses and other assets	37,148	42,214
Income taxes
Prepaid Expenses And Other Current Assets [Line Items]
Prepaid income taxes and Taxes other than on income	4,080	3,757
Taxes other than income
Prepaid Expenses And Other Current Assets [Line Items]
Prepaid income taxes and Taxes other than on income	$ 2,405	$ 2,390