GOODWILL AND OTHER INTANGIBLE ASSETS - Balances and Changes in the Carrying Amount of Goodwill by Segment (Details) $ in Thousands	9 Months Ended
Sep. 30, 2017 USD ($)
Goodwill [Roll Forward]
Balance at December 31, 2016	$ 527,150
Divestiture	(3,316)
Impairment	(7,169)
Translation	26,583
Balance at September 30, 2017	543,248
Cumulative goodwill impairment charges, December 31, 2016	119,602
Impairment charges	7,169
Cumulative goodwill impairment charges, September 30, 2017	126,771
UNITED STATES [Member]
Goodwill [Roll Forward]
Balance at December 31, 2016	202,020
Divestiture	(3,316)
Impairment	(7,169)
Translation	0
Balance at September 30, 2017	191,535
Cumulative goodwill impairment charges, December 31, 2016	17,038
Impairment charges	7,169
Cumulative goodwill impairment charges, September 30, 2017	24,207
CANADA [Member]
Goodwill [Roll Forward]
Balance at December 31, 2016	122,140
Divestiture	0
Impairment	0
Translation	9,433
Balance at September 30, 2017	131,573
Cumulative goodwill impairment charges, December 31, 2016	32,265
Impairment charges	0
Cumulative goodwill impairment charges, September 30, 2017	32,265
Other Businesses [Member]
Goodwill [Roll Forward]
Balance at December 31, 2016	202,990
Divestiture	0
Impairment	0
Translation	17,150
Balance at September 30, 2017	220,140
Cumulative goodwill impairment charges, December 31, 2016	70,299
Impairment charges	0
Cumulative goodwill impairment charges, September 30, 2017	$ 70,299

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 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.

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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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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.

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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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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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
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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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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