v3.26.1
Employee Benefits and Share-Based Compensation (Details) - $ / shares
1 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Feb. 28, 2026
Jun. 30, 2026
Dec. 31, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share options expired and forfeited, in shares     298,336    
Share options expired and forfeited, weighted average exercise price     $ 50.12    
Time-Based Awards          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share awards granted       6,190,325  
Time-Based Awards | Awarded In March 2026 | Employee          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share awards granted   5,000,000      
Share-based award, vesting period   3 years      
Performance-Based RSU Awards          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share awards granted       1,304,731  
Performance-Based RSU Awards | Awarded In March 2026 | Members of management team          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share awards granted   1,300,000      
RSU          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share-based award, vesting period   4 years      
RSU | President and Chief Executive Officer          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share awards granted   967,254      
Market-based RSUs (MSU)          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share awards granted       2,345,276  
Share-based award, vesting period   4 years      
Market-based RSUs (MSU) | Minimum          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Payout percentage   0.00%      
Market-based RSUs (MSU) | Maximum          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Payout percentage   200.00%      
Market-based RSUs (MSU) | President and Chief Executive Officer          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
Share awards granted   1,172,638      
Restated 2013 Plan | Maximum          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
NCLH ordinary shares authorized         48,009,006
Restated 2013 Plan, Amended          
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]          
NCLH ordinary shares authorized 56,816,006     56,816,006  
Number of additional shares authorized 8,807,000