XML 95 R66.htm IDEA: XBRL DOCUMENT v2.4.1.9
Operating Leases (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Operating Leases [Abstract]      
Operating Leases, Rent Expense $ 43,608us-gaap_LeaseAndRentalExpense $ 38,527us-gaap_LeaseAndRentalExpense $ 33,073us-gaap_LeaseAndRentalExpense
Operating Leases, Rent Expense, Contingent Rentals $ 84us-gaap_OperatingLeasesRentExpenseContingentRentals $ 140us-gaap_OperatingLeasesRentExpenseContingentRentals $ 169us-gaap_OperatingLeasesRentExpenseContingentRentals