Borrowings (Scheduled Principal Repayments on Borrowings) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
2013	$ 457,282
2014	397,054
2015	173,343
2016	479,320
2017	390,629
Thereafter	1,575,090
Total outstanding debt	3,472,718	1,673,800
Amortization
Debt Instrument [Line Items]
2013	26,642
2014	8,361
2015	9,043
2016	10,014
2017	11,382
Thereafter	71,711
Total outstanding debt	137,153
Maturities
Debt Instrument [Line Items]
2013	430,640
2014	388,693
2015	164,300
2016	469,306
2017	379,247
Thereafter	1,503,379
Total outstanding debt	$ 3,335,565

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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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

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-Paragraph 10

-Subparagraph b

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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 next 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 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 third fiscal year following the latest fiscal year.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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-Name Accounting Standards Codification

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-Section 02

-Paragraph 19, 20, 22

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