Acquisitions - Summary of Allocation of Aggregate Purchase Consideration to Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Sep. 25, 2020	Mar. 03, 2020	Dec. 31, 2019	Feb. 06, 2019
Assets Acquired:
Goodwill	$ 20,200		$ 16,681
Liabilities Assumed:
Goodwill	$ 20,200		$ 16,681
Stardust SAS (StarDust) [Member]
Assets Acquired:
Cash		$ 1,798
Accounts receivable		1,303
Prepaids & other		71
Property & equipment		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		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				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				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