Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Loss) (Details)

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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Accumulated other comprehensive income (loss) at beginning of period $ (314,473) $ (412,650)
Current period other comprehensive income before reclassifications 124,236 75,457
Amounts reclassified into earnings 20,158 58,547
Accumulated other comprehensive income (loss) at end of period (170,079) (278,646)
Change Related to Cash Flow Hedges    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Accumulated other comprehensive income (loss) at beginning of period (307,618) (405,298)
Current period other comprehensive income before reclassifications 124,236 75,457
Amounts reclassified into earnings [1] 19,949 58,331
Accumulated other comprehensive income (loss) at end of period (163,433) [2] (271,510)
Change Related to Shipboard Retirement Plan    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Accumulated other comprehensive income (loss) at beginning of period (6,855) (7,352)
Current period other comprehensive income before reclassifications  
Amounts reclassified into earnings [3] 209 216
Accumulated other comprehensive income (loss) at end of period $ (6,646) $ (7,136)
[1] We refer you to Note 6- "Fair Value Measurements and Derivatives" for the affected line items in the consolidated statements of operations.
[2] Includes $44.4 million of loss expected to be reclassified into earnings in the next 12 months.
[3] Amortization of prior-service cost and actuarial loss reclassified to payroll and related expense.