RESTRUCTURING AND OTHER SPECIAL CHARGES - Restructuring Accrual Roll Forward (Detail) - Restructuring February 2015 Plan $ in Thousands	6 Months Ended
Jun. 30, 2016 USD ($)
Restructuring Reserve [Roll Forward]
Accrual at December 31, 2015	$ 9,721
Cash Payments	(4,435)
Accrual at March 31, 2016	5,286
Workforce reduction
Restructuring Reserve [Roll Forward]
Accrual at December 31, 2015	4,309
Cash Payments	(3,445)
Accrual at March 31, 2016	864
Consolidation of office facilities
Restructuring Reserve [Roll Forward]
Accrual at December 31, 2015	4,767
Cash Payments	(726)
Accrual at March 31, 2016	4,041
Other costs and professional fees
Restructuring Reserve [Roll Forward]
Accrual at December 31, 2015	645
Cash Payments	(264)
Accrual at March 31, 2016	$ 381

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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- Definition

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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