Indebtedness (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Summary of the stated maturities and scheduled principal payments
Remainder of 2012	$ 5,577
2013	11,362
2014	451,160
2015	51,510
2016	287,172
Thereafter	573,464
Total	$ 1,380,245

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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