Intangible Assets (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 171,563
Foreign currency translation	(4,157)
Ending Balance	164,812
Goodwill, Written off Related to Sale of Business Unit	2,594
Goodwill [Line Items]
Goodwill, Written off Related to Sale of Business Unit	2,594
Workforce Excellence [Member]
Goodwill [Roll Forward]
Beginning Balance	119,311
Foreign currency translation	(2,921)
Ending Balance	113,796
Goodwill, Written off Related to Sale of Business Unit	2,594
Goodwill [Line Items]
Goodwill, Written off Related to Sale of Business Unit	2,594
Business Transformation Services [Member]
Goodwill [Roll Forward]
Beginning Balance	52,252
Foreign currency translation	(1,236)
Ending Balance	51,016
Goodwill, Written off Related to Sale of Business Unit	0
Goodwill [Line Items]
Goodwill, Written off Related to Sale of Business Unit	$ 0

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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Amount before 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 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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Amount of divestiture 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://fasb.org/us-gaap/role/ref/legacyRef
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