Annual report pursuant to Section 13 and 15(d)

Employee Benefits and Share Option Plans - Amounts Related to Shipboard Retirement Plan (Detail 4)

v2.4.1.9
Employee Benefits and Share Option Plans - Amounts Related to Shipboard Retirement Plan (Detail 4) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Pension expense:      
Service cost $ 1,393us-gaap_DefinedBenefitPlanServiceCost $ 1,498us-gaap_DefinedBenefitPlanServiceCost $ 1,367us-gaap_DefinedBenefitPlanServiceCost
Interest cost 728us-gaap_DefinedBenefitPlanInterestCost 603us-gaap_DefinedBenefitPlanInterestCost 604us-gaap_DefinedBenefitPlanInterestCost
Amortization of prior service cost 378us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit 378us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit 378us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
Amortization of actuarial loss   90us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses 13us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses
Total pension expense 2,499us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost 2,569us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost 2,362us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost
Change in projected benefit obligation:      
Projected benefit obligation at beginning of year 19,730us-gaap_DefinedBenefitPlanBenefitObligation 15,570us-gaap_DefinedBenefitPlanBenefitObligation 16,221us-gaap_DefinedBenefitPlanBenefitObligation
Service cost 1,393us-gaap_DefinedBenefitPlanServiceCost 1,498us-gaap_DefinedBenefitPlanServiceCost 1,367us-gaap_DefinedBenefitPlanServiceCost
Interest cost 728us-gaap_DefinedBenefitPlanInterestCost 603us-gaap_DefinedBenefitPlanInterestCost 604us-gaap_DefinedBenefitPlanInterestCost
Actuarial gain (loss) 2,689us-gaap_DefinedBenefitPlanActuarialGainLoss (2,070)us-gaap_DefinedBenefitPlanActuarialGainLoss 1,721us-gaap_DefinedBenefitPlanActuarialGainLoss
Direct benefit payments (650)us-gaap_DefinedBenefitPlanBenefitsPaid (682)us-gaap_DefinedBenefitPlanBenefitsPaid (800)us-gaap_DefinedBenefitPlanBenefitsPaid
Projected benefit obligation at end of year 15,570us-gaap_DefinedBenefitPlanBenefitObligation 19,730us-gaap_DefinedBenefitPlanBenefitObligation 15,570us-gaap_DefinedBenefitPlanBenefitObligation
Amounts recognized in the consolidated balance sheets:      
Projected benefit obligation at beginning of year 19,730us-gaap_DefinedBenefitPlanBenefitObligation 15,570us-gaap_DefinedBenefitPlanBenefitObligation 16,221us-gaap_DefinedBenefitPlanBenefitObligation
Amounts recognized in accumulated other comprehensive income (loss):      
Prior service cost (5,671)us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditAfterTax (6,049)us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditAfterTax (6,427)us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditAfterTax
Accumulated actuarial loss (3,849)us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesAfterTax (1,160)us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesAfterTax (3,320)us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesAfterTax
Accumulated other comprehensive income (loss) $ (9,520)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax $ (7,209)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax $ (9,747)us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax