GOODWILL AND OTHER INTANGIBLES - Goodwill Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Goodwill, beginning		$ 95,096
Aggregate goodwill acquired		364,717	$ 364,717
Sale of CCE		(9,889)	(9,889)
Accumulated impairment loss	$ (277,452)	(277,452)	(259,732)
Impairment charges		(17,720)
Goodwill, ending	77,376	77,376	95,096
Nurse And Allied Staffing [Member]
Goodwill [Roll Forward]
Goodwill, beginning		42,273
Aggregate goodwill acquired		302,005	302,005
Sale of CCE		0	0
Accumulated impairment loss	(259,732)	(259,732)	(259,732)
Impairment charges		0
Goodwill, ending	42,273	42,273	42,273
Physician Staffing [Member]
Goodwill [Roll Forward]
Goodwill, beginning		43,405
Aggregate goodwill acquired		43,405	43,405
Sale of CCE		0	0
Accumulated impairment loss	(17,720)	(17,720)	0
Impairment charges	(17,700)	(17,720)
Goodwill, ending	25,685	25,685	43,405
Other Human Capital Management Services [Member]
Goodwill [Roll Forward]
Goodwill, beginning		9,418
Aggregate goodwill acquired		19,307	19,307
Sale of CCE		(9,889)	(9,889)
Accumulated impairment loss	0	0	0
Impairment charges		0
Goodwill, ending	$ 9,418	$ 9,418	$ 9,418

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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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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- Definition

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
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267

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-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
-Paragraph 28
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-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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-Section 50
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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.

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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.

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