Commitments and Contingencies (Future Minimum Payments Under Lease Financing Obligations and Non-Cancelable Operating Leases) (Details) $ in Thousands	Dec. 31, 2015 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2016	$ 42,545
2017	54,811
2018	58,015
2019	53,152
2020	51,844
Thereafter	269,377
Total minimum payments	$ 529,744

Capital and Operating Leases, Future Minimum Payments Due

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Capital and Operating Leases, Future Minimum Payments, Due Thereafter

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Capital and Operating Leases, Future Minimum Payments, Due in Five Years

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Capital and Operating Leases, Future Minimum Payments, Due in Four Years

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Capital and Operating Leases, Future Minimum Payments, Due in Three Years

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Capital and Operating Leases, Future Minimum Payments, Due in Two Years

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Capital and Operating Leases, Future Minimum Payments, Next Twelve Months

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