Commitments and Contingencies (Details) (USD $) In Thousands	Jun. 30, 2011
Future minimum lease payments due under operating and capital leases
Operating Leases 2011	$ 2,662
Capital Leases 2011	3,803
Operating Leases 2012	5,322
Capital Leases 2012	7,622
Operating Leases 2013	5,333
Capital Leases 2013	73,003
Operating Leases 2014	5,353
Capital Leases 2014	660
Operating Leases 2015	5,100
Capital Leases 2015	8,425
Operating Leases Thereafter	196,918
Capital Leases Thereafter	0
Operating Lease Total	220,688
Capital Leases Total	$ 93,513