CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 209,567	$ 194,855
Trade and other receivables, net	342,021	281,421
Inventories	160,225	146,295
Prepaid expenses and other assets	258,567	207,662
Derivative financial instruments	48,295	57,827
Total current assets	1,018,675	888,060
Property and equipment, net	17,494,039	17,451,034
Goodwill	436,647	432,975
Other assets	1,136,884	1,055,861
Total assets	20,086,245	19,827,930
Current liabilities
Current portion of long-term debt	1,942,849	1,519,483
Accounts payable	396,482	351,587
Accrued interest	120,585	106,366
Accrued expenses and other liabilities	623,664	541,722
Customer deposits	1,760,985	1,546,993
Total current liabilities	4,844,565	4,066,151
Long-term debt	5,980,912	6,970,464
Other long-term liabilities	498,684	482,566
Commitments and contingencies (Note 7)
Shareholders' equity
Preferred stock ($0.01 par value; 20,000,000 shares authorized; none outstanding)
Common stock ($0.01 par value; 500,000,000 shares authorized; 230,223,320 and 229,080,109 shares issued, September 30, 2013 and December 31, 2012, respectively)	2,302	2,291
Paid-in capital	3,137,112	3,109,887
Retained earnings	6,103,290	5,744,791
Accumulated other comprehensive loss	(66,916)	(134,516)
Treasury stock (10,308,683 common shares at cost, September 30, 2013 and December 31, 2012)	(413,704)	(413,704)
Total shareholders' equity	8,762,084	8,308,749
Total liabilities and shareholders' equity	$ 20,086,245	$ 19,827,930