Annual report pursuant to Section 13 and 15(d)

Employee Benefits and Share-Based Compensation - (Detail Textuals)

v3.6.0.2
Employee Benefits and Share-Based Compensation - (Detail Textuals) - USD ($)
 1 Months Ended 12 Months Ended
May 31, 2016
Mar. 31, 2016
Jan. 31, 2013
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Apr. 30, 2014
Defined Benefit Plan Disclosure [Line Items]              
Intrinsic value of units exchanged       $ 24,272,000      
Proceeds from the exercise of share options       6,738,000 $ 69,127,000 $ 5,857,000  
Share-based compensation expense       66,414,000 42,209,000 20,627,000  
Total taxes paid pursuant to net share settlements       900,000      
Forfeited contributions utilized       100,000 400,000 100,000  
Recorded expenses related to 401k plan and SERP       $ 6,400,000 $ 5,300,000 $ 3,700,000  
Discount rate used in the net periodic benefit cost calculation       4.30% 3.80% 4.80%  
Amortization period of losses       18 years 10 months 21 days      
Performance Incentive Plan              
Defined Benefit Plan Disclosure [Line Items]              
Share options and ordinary shares, authorized     15,035,106        
Maximum number of shares that can be granted to one individual     5,000,000        
Employee Stock Purchase Plan              
Defined Benefit Plan Disclosure [Line Items]              
Number of shares authorized to repurchase             2,000,000
Percentage of purchase price discount       15.00%      
Accrued payroll liability       $ 1,300,000 $ 1,100,000    
Restated 2013 Plan              
Defined Benefit Plan Disclosure [Line Items]              
Share options and ordinary shares, authorized 12,430,000            
Maximum number of shares that can be granted to one individual 27,465,106            
401(k) Plan              
Defined Benefit Plan Disclosure [Line Items]              
Maximum percentage of employee eligible compensation that may be contributed towards 401(k)       100.00%      
Defined contribution plan, percentage of employee contribution       3.00%      
Matching contributions vesting period       5 years      
401(k) Plan | The first 3%              
Defined Benefit Plan Disclosure [Line Items]              
Employer matching contribution percent       100.00%      
401(k) Plan | Amounts greater than 3%              
Defined Benefit Plan Disclosure [Line Items]              
Employer matching contribution percent       50.00%      
401(k) Plan | Amounts greater than 3% | Minimum              
Defined Benefit Plan Disclosure [Line Items]              
Employer matching contribution percent       10.00%      
Supplemental Executive Retirement Plan (SERP)              
Defined Benefit Plan Disclosure [Line Items]              
Participants' deferred compensation accounts under the SERP Plan       $ 500,000 500,000    
Shipboard Retirement Plan              
Defined Benefit Plan Disclosure [Line Items]              
Projected benefit obligation included in accrued expenses and other liabilities       1,200,000 1,100,000    
Projected benefit obligation included in other long term liabilities       21,400,000 20,000,000    
Non Recurring Costs | Management Exchange Agreement              
Defined Benefit Plan Disclosure [Line Items]              
Share-based compensation expense           $ 6,000,000  
Options              
Defined Benefit Plan Disclosure [Line Items]              
Incremental cost associated with vested awards       5,500,000      
Share options granted   1,000,000          
Exercise price of share options granted   $ 50.31          
Total intrinsic value of stock options exercised       5,200,000 68,000,000 4,500,000  
Proceeds from the exercise of share options       $ 7,600,000 $ 69,100,000 $ 6,100,000  
Time Based Options              
Defined Benefit Plan Disclosure [Line Items]              
Share options granted       1,095,000      
Exercise price of share options granted       $ 49.88      
Weighted average period for recognition of unrecognized compensation expense       1 year 9 months      
Description of share-based awards vesting period       The vesting period for time-based options is typically set at 3, 4 or 5 years      
Weighted-average grant-date fair value of options granted       $ 17.11 $ 20.90 $ 16.86  
Proceeds from the exercise of share options       $ 70,200,000      
Vesting percentage       50.00%      
Time Based Options | Minimum              
Defined Benefit Plan Disclosure [Line Items]              
Share based award, contractual life     7 years        
Time Based Options | Maximum              
Defined Benefit Plan Disclosure [Line Items]              
Share based award, contractual life     10 years        
Performance Based Options              
Defined Benefit Plan Disclosure [Line Items]              
Share options granted       52,083      
Exercise price of share options granted       $ 59.43      
Weighted average period for recognition of unrecognized compensation expense       0 years      
Weighted-average grant-date fair value of options granted       $ 8.67 17.07    
Proceeds from the exercise of share options       $ 0      
Share awards granted       12,500      
Vesting percentage       50.00%      
Performance Based Options | Amendment to employment agreement              
Defined Benefit Plan Disclosure [Line Items]              
Share options granted       364,584      
Market Based Share Option Awards              
Defined Benefit Plan Disclosure [Line Items]              
Share options granted            
Exercise price of share options granted            
Weighted average period for recognition of unrecognized compensation expense       6 months 15 days      
Weighted-average grant-date fair value of options granted         $ 12.37    
Proceeds from the exercise of share options       $ 700,000      
Restricted Stock              
Defined Benefit Plan Disclosure [Line Items]              
Share based award, vesting period   3 years          
Share options granted   1,200,000          
Unrecognized compensation expense       $ 100,000      
Weighted average period for recognition of unrecognized compensation expense       5 months 9 days      
Total fair value of shares vested       $ 1,100,000 $ 40,900,000 $ 700,000  
Description of share-based awards vesting period       equal quarterly installments over 1 or 2 years or in annual installments over 4 years      
"Time-Based Units" ("TBUs")              
Defined Benefit Plan Disclosure [Line Items]              
Unrecognized compensation expense       $ 45,100,000      
Weighted average period for recognition of unrecognized compensation expense       2 years 2 months 9 days      
Share based award, contractual life       5 years      
Total unrecognized compensation cost related to share options granted       $ 70,200,000      
Share awards granted       1,328,490      
"Performance-Based Units" ("PBUs")              
Defined Benefit Plan Disclosure [Line Items]              
Unrecognized compensation expense       $ 0      
Weighted average period for recognition of unrecognized compensation expense       0 years      
Total unrecognized compensation cost related to share options granted       $ 0      
"Performance-Based Units" ("PBUs") | Amendment to employment agreement              
Defined Benefit Plan Disclosure [Line Items]              
Share options granted       87,500      
Market-based RSUs              
Defined Benefit Plan Disclosure [Line Items]              
Unrecognized compensation expense       $ 400,000      
Weighted average period for recognition of unrecognized compensation expense       6 months 15 days      
Total unrecognized compensation cost related to share options granted       $ 700,000      
Share awards granted