Annual report pursuant to Section 13 and 15(d)

IMPAIRMENT OF GOODWILL AND OTHER INDEFINITE-LIVED INTANGIBLE ASSETS (Details 5)

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IMPAIRMENT OF GOODWILL AND OTHER INDEFINITE-LIVED INTANGIBLE ASSETS (Details 5) - Goodwill [Member]
$ in Thousands
 12 Months Ended
Dec. 31, 2017
USD ($)
integerItemType
Less than 10% [Member]  
Carrying Amounts And Fair Values Of Financial Instruments [Line Items]  
Number of accounting units | integerItemType 3
Carrying value including goodwill | $ $ 83,729
>10% to 20% [Member]  
Carrying Amounts And Fair Values Of Financial Instruments [Line Items]  
Number of accounting units | integerItemType 2
Carrying value including goodwill | $ $ 25,053
> 20% to 50% [Member]  
Carrying Amounts And Fair Values Of Financial Instruments [Line Items]  
Number of accounting units | integerItemType 7
Carrying value including goodwill | $ $ 120,849
> than 50% [Member]  
Carrying Amounts And Fair Values Of Financial Instruments [Line Items]  
Number of accounting units | integerItemType 7
Carrying value including goodwill | $ $ 69,981