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Goodwill (Details) - Summary of changes in the carrying amount of goodwill - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill, Beginning, Balance	$ 117,743	$ 95,006
Business combination	11,550	16,073
Measurement period adjustments	2,061	2,977
Foreign currency translation adjustments	4,328	3,687
Goodwill, Ending, Balance	135,682	117,743
IT professional services [Member]
Goodwill [Line Items]
Goodwill, Beginning, Balance	60,346	46,691
Business combination	5,832	12,691
Measurement period adjustments	1,443	(785)
Foreign currency translation adjustments	1,725	1,749
Goodwill, Ending, Balance	69,346	60,346
Software services [Member]
Goodwill [Line Items]
Goodwill, Beginning, Balance	57,397	48,315
Business combination	5,718	3,382
Measurement period adjustments	618	3,762
Foreign currency translation adjustments	2,603	1,938
Goodwill, Ending, Balance	$ 66,336	$ 57,397

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
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