Leases (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Leases [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 27,980
Operating Leases, Future Minimum Payments, Due in Two Years	27,510
Operating Leases, Future Minimum Payments, Due in Three Years	24,340
Operating Leases, Future Minimum Payments, Due in Four Years	22,600
Operating Leases, Future Minimum Payments, Due in Five Years	20,050
Operating Leases, Future Minimum Payments, Due Thereafter	49,010
Operating Leases, Future Minimum Payments Due	$ 171,490