CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income (loss)	$ (90,498)	$ 10,949
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	55,137	52,479
Loss (gain) on disposal of assets	1,253	(144)
Loss from equity method investments	92,181	2,839
Loss on early extinguishment of debt	0	20,718
Reserve on uncollectible loan receivable	0	2,000
Amortization of debt issuance costs and debt discounts	3,351	3,240
Share-based compensation expense	5,421	5,206
Changes in operating assets and liabilities:
Receivables, net	518	7,016
Prepaid expenses and other	(8,168)	(6,428)
Accounts payable, accrued expenses and other	17,360	10,117
Net cash provided by operating activities	76,555	107,992
Cash flows from investing activities:
Capital expenditures	(106,389)	(156,914)
Equity method investment, inclusive of capitalized interest	(2,298)	(4,414)
Purchase of held-to-maturity debt securities	(5,853)	(20,062)
Proceeds from matured investments	4,428	0
Proceeds from sale of property and equipment	298	3,712
Net proceeds from sale of discontinued operations	0	10,784
Purchase of intangible assets	0	(1,057)
Proceeds from non-refundable deposit	2,550	0
Loans receivable, net	(4,586)	(5,785)
Refund of restricted cash	0	(413)
Net cash used in investing activities	(111,850)	(173,323)
Cash flows from financing activities:
Proceeds from Credit Facility	50,000	47,500
Repayments under Credit Facility	(30,000)	(103,500)
Proceeds from issuance of long-term debt	0	646,750
Repayment of long-term debt	(1,625)	(389,875)
Proceeds from common stock options exercised	2,288	631
Payments on other secured and unsecured notes payable	0	(653)
Distribution to non-controlling interest minority owner	(911)	0
Debt issuance and other financing costs	(16)	(12,836)
Net cash (used in) provided by financing activities	19,736	188,017
(Decrease) increase in cash and cash equivalents	(15,559)	122,686
Cash and cash equivalents at the beginning of the period	101,792	80,294
Cash and cash equivalents at the end of the period	86,233	202,980
Supplemental cash flow information:
Cash paid for interest, net of amounts capitalized	53,832	35,444
Cash payments related to income taxes, net	2,227	1,869
Increase (decrease) in construction-related deposits and liabilities	$ (16,047)	$ 20,849