Debt (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014
Long-term Debt, by Maturity
2014 (remainder)	$ 319,126
2015	248,469
2016	592,641
2017	810,798
2018	416,352
Thereafter through 2026	1,437,526
Long Term Debt Before Unamortized Discount	3,824,912
Unamortized premium, net	1,575
Total scheduled debt principal payments	$ 3,826,487

The amount of debt discount (net of debt premium) that was originally recognized at the issuance of the instrument that has yet to be amortized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 30

-Section 45

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the remainder of the fiscal year following the latest fiscal year ended.

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No definition available.

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings, before unamortized discount, as of the balance sheet date.

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