Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2015	Jun. 30, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Gross Balance		$ 108,041
Accumulated Impairment Loss		(61,043)	$ (62,247)
Additions		0
Goodwill, Impairment Loss	$ 21,000
Translation and Other Adjustments		(218)
Gross Balance		106,619
Accumulated Impairment Loss		(61,043)	(62,247)
Engineering Solutions [Member]
Goodwill [Roll Forward]
Gross Balance		35,713
Accumulated Impairment Loss		(21,431)	(21,431)
Additions		0
Goodwill, Impairment Loss	10,400
Translation and Other Adjustments		0
Gross Balance		35,713
Accumulated Impairment Loss		(21,431)	(21,431)
Specialty Talent and Technology [Member]
Goodwill [Roll Forward]
Gross Balance		16,445
Accumulated Impairment Loss		0	0
Additions		0
Translation and Other Adjustments		0
Gross Balance		16,445
Accumulated Impairment Loss		0	0
Enterprise Talent Solutions [Member]
Goodwill [Roll Forward]
Gross Balance		40,134
Accumulated Impairment Loss		(33,916)	(34,511)
Additions		0
Goodwill, Impairment Loss	$ 10,700
Translation and Other Adjustments		0
Gross Balance		39,539
Accumulated Impairment Loss		(33,916)	(34,511)
MRI [Member]
Goodwill [Roll Forward]
Gross Balance		15,749
Accumulated Impairment Loss		(5,696)	(6,305)
Additions		0
Translation and Other Adjustments		(218)
Gross Balance		14,922
Accumulated Impairment Loss		$ (5,696)	$ (6,305)

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.

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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

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

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- Definition

Amount of loss from the write-down 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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
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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

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments 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/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (g)
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-Publisher FASB
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