Debt (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Long-Term Debt, Capital Leases and Financing Obligations [Line Items]
Debt	$ 6,415,029,000	$ 2,606,578,000
Other Notes Payable	135,875,000	0
Less current portion	469,501,000	201,954,000
Long-term debt	5,945,528,000	2,404,624,000
Mortgage Notes Payable [Member]
Long-Term Debt, Capital Leases and Financing Obligations [Line Items]
Debt	3,248,897,000	2,037,649,000
Unamortized debt discount (premium)	71,100,000
Weighted average interest rate	4.86%	4.12%
Capital Lease Obligations [Member]
Long-Term Debt, Capital Leases and Financing Obligations [Line Items]
Debt	2,686,965,000	299,824,000
Weighted average interest rate	8.37%	8.14%
Convertible Debt [Member]
Long-Term Debt, Capital Leases and Financing Obligations [Line Items]
Debt	269,544,000	261,443,000
Principal	316,300,000	316,300,000
Unamortized debt discount (premium)	46,700,000	54,800,000
Weighted average interest rate	2.75%	2.75%
Construction Financing [Member]
Long-Term Debt, Capital Leases and Financing Obligations [Line Items]
Debt	43,600,000	4,476,000
Weighted average interest rate	5.13%	6.22%
Notes Payable, Insurance Premiums [Member]
Long-Term Debt, Capital Leases and Financing Obligations [Line Items]
Debt	$ 30,148,000	$ 3,186,000
Weighted average interest rate	2.65%	2.65%
Notes Payable, Other Payables [Member]
Long-Term Debt, Capital Leases and Financing Obligations [Line Items]
Weighted average interest rate	5.87%