XML 86 R69.htm IDEA: XBRL DOCUMENT v3.5.0.2
Incentive Plan (Market Performance Based Awards) (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
USD ($)
Jun. 30, 2015
USD ($)
Jun. 30, 2016
USD ($)
simulation
shares
Jun. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
Market Performance-Based Awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance period     3 years    
Number of trials | simulation     100,000    
Fair value of awards     $ 55.6    
Award requisite service period     4 years    
Unearned compensation $ 32.3   $ 32.3   $ 17.8
Recognized compensation expense 0.9 $ 2.1 2.5 $ 3.3  
Capitalized expense related to construction and leasing activities $ 0.0 $ 0.6 $ 0.8 $ 1.0  
Class D Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (shares) | shares     1,683,182    
Restricted Stock Units (RSUs)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Granted (shares) | shares     461,071    
2015 Performance Grant | Market Performance-Based Awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance period     3 years    
Expected volatility rate     24.00%    
Risk-free interest rate     1.00%    
2015 Performance Grant | Market Performance-Based Awards | Below Threshold Level          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance Threshold     (3.00%)    
Market Performance Vesting Percentage     0.00%    
2015 Performance Grant | Market Performance-Based Awards | Threshold Level          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance Threshold     (3.00%)    
Market Performance Vesting Percentage     25.00%    
2015 Performance Grant | Market Performance-Based Awards | Target Level          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance Threshold     1.00%    
Market Performance Vesting Percentage     50.00%    
2015 Performance Grant | Market Performance-Based Awards | High Level          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance Threshold     5.00%    
Market Performance Vesting Percentage     100.00%    
2016 Performance Grant | Market Performance-Based Awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance period     3 years    
2016 Performance Grant | Market Performance-Based Awards | Below Threshold Level          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance Threshold       (3.00%)  
Market Performance Vesting Percentage       0.00%  
2016 Performance Grant | Market Performance-Based Awards | Threshold Level          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance Threshold       (3.00%)  
Market Performance Vesting Percentage       25.00%  
2016 Performance Grant | Market Performance-Based Awards | Target Level          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance Threshold       1.00%  
Market Performance Vesting Percentage       50.00%  
2016 Performance Grant | Market Performance-Based Awards | High Level          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance Threshold       5.00%  
Market Performance Vesting Percentage       100.00%  
2016 Performance Grant | Market Performance-Based Awards | Tranche Five          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Market Performance Vesting Percentage     50.00%    
2016 Performance Grant | Market Performance-Based Awards | Tranche Six          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Market Performance Vesting Percentage     50.00%    
2016 Performance Grant | Market Performance-Based Awards | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expected volatility rate     22.00%    
Risk-free interest rate     1.32%    
2016 Performance Grant | Market Performance-Based Awards | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expected volatility rate     26.00%    
Risk-free interest rate     0.89%