|
GOODWILL (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Goodwill, Carrying Amount in Foreign Countries | ||
| Carrying amount of goodwill in foreign countries | $ 42,700rol_GoodwillCarryingAmountInForeignCountries | $ 9,200rol_GoodwillCarryingAmountInForeignCountries |
| Changes in the carrying amount of goodwill | ||
| Goodwill balance at the beginning of the period | 211,847us-gaap_Goodwill | 212,477us-gaap_Goodwill |
| Goodwill acquired | 48,477us-gaap_GoodwillAcquiredDuringPeriod | 40us-gaap_GoodwillAcquiredDuringPeriod |
| Goodwill adjustments due to currency translation | (4,761)us-gaap_GoodwillTranslationAdjustments | (670)us-gaap_GoodwillTranslationAdjustments |
| Goodwill balance at the end of the period | $ 255,563us-gaap_Goodwill | $ 211,847us-gaap_Goodwill |
| X | ||||||||||
|
- Definition
Goodwill, Carrying Amount in Foreign Countries No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
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
|
| X | ||||||||||
|
- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) from foreign currency translation 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|