CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Net loss attributable to common stockholders	$ (332,313)	$ (141,163)
Other comprehensive income (loss):
Designated derivatives, fair value adjustments	2,636	(1,177)
Unrealized gain on investment securities, net	3,095	428
Total other comprehensive income (loss)	5,731	(749)
Total comprehensive loss	$ (326,582)	$ (141,912)

Net Income (Loss) Available to Common Stockholders, Basic And Diluted

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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