Indebtedness (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Summary of the stated maturities and scheduled principal payments
Remainder of 2012	$ 6,442
2013	13,164
2014	453,063
2015	62,088
2016	293,467
Thereafter	657,148
Total	$ 1,485,372

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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