CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating Activities
Net income	$ 607,421	$ 515,653	$ 152,485
Adjustments:
Depreciation and amortization	702,426	643,716	568,214
(Gain) loss on fuel call options	(18,920)	2,826	2,538
Changes in operating assets and liabilities:
Decrease (increase) in trade and other receivables, net	87,872	146,498	(3,633)
Increase in inventories	(18,423)	(20,274)	(11,295)
Increase in prepaid expenses and other assets	(17,052)	(10,954)	(3,085)
Increase (decrease) in accounts payable	56,755	(15,507)	16,424
(Decrease) increase in accrued interest	(28,553)	13,359	18,668
Increase in accrued expenses and other liabilities	25,318	71,969	16,258
Increase in customer deposits	19,482	135,975	32,038
Cash received on early settlement of derivative financial instruments	12,200	172,993
Dividends received from unconsolidated affiliates	21,147
Other, net	6,066	6,765	56,269
Net cash provided by operating activities	1,455,739	1,663,019	844,881
Investing Activities
Purchases of property and equipment	(1,173,626)	(2,187,189)	(2,477,549)
Cash received (paid) on settlement of derivative financial instruments	16,307	(91,325)	110,830
Loans and equity contributions to unconsolidated affiliates	(110,660)		(181,683)
Proceeds from sale of ships	345,000		290,928
Other, net	(1,586)	(9,404)	(16,983)
Net cash used in investing activities	(924,565)	(2,287,918)	(2,274,457)
Financing Activities
Debt proceeds	1,578,368	2,420,262	2,317,158
Debt issuance costs	(84,381)	(90,782)	(61,157)
Repayments of debt	(2,179,046)	(1,600,265)	(948,467)
Dividends paid	(21,707)
Proceeds from exercise of common stock options	19,463	26,158	569
Other, net	10,788	1,587	4,103
Net cash (used in) provided by financing activities	(676,515)	756,960	1,312,206
Effect of exchange rate changes on cash	(12,402)	3,249	(889)
Net (decrease) increase in cash and cash equivalents	(157,743)	135,310	(118,259)
Cash and cash equivalents at beginning of year	419,929	284,619	402,878
Cash and cash equivalents at end of year	262,186	419,929	284,619
Cash paid during the year for:
Interest, net of amount capitalized	$ 360,892	$ 297,477	$ 288,458