Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013
Commitments and Contingencies
Initial term of non cancellable operating leases, minimum	1 year
Capital leases
2013 (9 months)	$ 1,589
2014	2,268
2015	2,339
2016	2,480
2017	2,630
Thereafter	353,908
Total minimum lease payments	365,214
Less amount representing interest	(321,810)
Present value of net minimum lease payments	43,404
Non-cancellable operating leases
2013 (9 months)	26,484
2014	35,412
2015	35,568
2016	35,985
2017	36,231
Thereafter	1,188,068
Total minimum lease payments	$ 1,357,748

Represents the initial minimum term of the non cancellable operating leases.

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Amount of minimum lease payments for capital leases.

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Amount of minimum lease payments maturing in the fifth fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing in the forth fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing in the third fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing in the second fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing after the fifth fiscal year following the latest fiscal year for capital leases.

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Amount necessary to reduce net minimum lease payments to present value for capital leases.

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Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.

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Amount of minimum lease payments maturing in the remainder of the fiscal year following the latest fiscal year ended for capital leases.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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