Acquisitions - Summary of Allocation of Aggregate Purchase Consideration to Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Mar. 03, 2020	Dec. 31, 2019	Feb. 06, 2019
Assets Acquired:
Goodwill	$ 19,676	$ 21,275		$ 16,681
Liabilities Assumed:
Goodwill	$ 19,676	$ 21,275		$ 16,681
Stardust SAS (StarDust) [Member]
Assets Acquired:
Cash			$ 1,798
Accounts receivable			1,303
Prepaids & other			71
Property & equipment, net			327
Acquired intangibles			1,282
Goodwill			2,757
Total assets acquired			7,538
Liabilities Assumed:
Accounts payable			285
Accrued compensation			307
Taxes payable			222
Other liabilities			163
Deferred income taxes			328
Total liabilities assumed			1,305
Net assets acquired			6,233
Cash			1,798
Accounts receivable			1,303
Prepaids & other			71
Property & equipment, net			327
Acquired intangibles			1,282
Goodwill			2,757
Total assets acquired			7,538
Accounts payable			285
Accrued compensation			307
Other liabilities			163
Total liabilities assumed			$ 1,305
Tech-IT PSF S.A. [Member]
Assets Acquired:
Cash					$ 1,217
Accounts receivable					4,491
Prepaids & other					1,122
Property & equipment, net					98
Acquired intangibles					4,099
Goodwill					5,331
Total assets acquired					16,358
Liabilities Assumed:
Accounts payable					2,378
Accrued compensation					172
Other liabilities					2,447
Total liabilities assumed					6,111
Net assets acquired					10,247
Cash					1,217
Accounts receivable					4,491
Prepaids & other					1,122
Property & equipment, net					98
Acquired intangibles					4,099
Goodwill					5,331
Total assets acquired					16,358
Accounts payable					2,378
Accrued compensation					172
Other liabilities					2,447
Deferred income taxes					1,114
Total liabilities assumed					$ 6,111