CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating Activities
Net income	$ 43,311	$ 171,901
Adjustments:
Depreciation and amortization	359,906	345,302
Loss (gain) on fuel call options	7,470	(24,803)
Changes in operating assets and liabilities:
Decrease in trade and other receivables, net	56,651	63,803
Increase in inventories	(2,451)	(17,316)
Increase in prepaid expenses and other assets	(58,495)	(83,740)
Increase in accounts payable	12,348	92,619
Decrease in accrued interest	(37,377)	(60,653)
Decrease in accrued expenses and other liabilities	(28,505)	(21,931)
Increase in customer deposits	224,873	306,070
Other, net	5,788	(4,510)
Net cash provided by operating activities	583,519	766,742
Investing Activities
Purchases of property and equipment	(322,751)	(251,565)
Cash received on settlement of derivative financial instruments	4,646	25,250
Loan to unconsolidated affiliate		(69,682)
Proceeds from the sale of ships		345,000
Other, net	4,936	(3,044)
Net cash (used in) provided by investing activities	(313,169)	45,959
Financing Activities
Debt proceeds	345,000	702,442
Debt issuance costs	(21,730)	(28,593)
Repayments of debt	(575,585)	(1,376,801)
Dividends paid	(65,293)
Proceeds from exercise of common stock options	1,768	17,923
Other, net	774	705
Net cash used in financing activities	(315,066)	(684,324)
Effect of exchange rate changes on cash	(5,261)	3,154
Net (decrease) increase in cash and cash equivalents	(49,977)	131,531
Cash and cash equivalents at beginning of period	262,186	419,929
Cash and cash equivalents at end of period	212,209	551,460
Cash paid during the period for:
Interest, net of amount capitalized	$ 194,341	$ 223,438