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Leases and Other - Net Rent Expense Under Operating Leases (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Net rent expense under operating leases      
Minimum rentals $ 34,201 $ 36,309 $ 30,860
Sublease rentals (6,815) (6,501) (6,497)
Total rentals, net $ 27,386 $ 29,808 $ 24,363