Annual report pursuant to Section 13 and 15(d)

COMMITMENTS AND CONTINGENCIES (Narrative) (Details)

v2.4.1.9
COMMITMENTS AND CONTINGENCIES (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Schedule of Operating Leases [Line Items]      
Fair value of guarantees $ 0us-gaap_GuaranteesFairValueDisclosure    
Rental expense $ 17,900,000us-gaap_LeaseAndRentalExpense $ 16,900,000us-gaap_LeaseAndRentalExpense $ 15,700,000us-gaap_LeaseAndRentalExpense
Minimum [Member]      
Schedule of Operating Leases [Line Items]      
Lease expiration period 10 years    
Lease renewal periods 1 year    
Maximum [Member]      
Schedule of Operating Leases [Line Items]      
Lease expiration period 25 years    
Lease renewal periods 5 years