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Equity Based Compensation Plans - Narrative (Details)
1 Months Ended 12 Months Ended 24 Months Ended
Dec. 09, 2014
shares
Dec. 31, 2013
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Dec. 31, 2019
USD ($)
$ / shares
shares
Dec. 09, 2015
Dec. 31, 2011
shares
May 31, 2018
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of shares authorized | shares               2,000,000
Accelerated share-based compensation cost     $ 3,500,000 $ 3,500,000 $ 3,500,000      
Intrinsic value of the options outstanding and fully vested     $ 22,500,000 $ 3,400,000        
Average fair value of stock options granted (in dollars per share) | $ / shares     $ 24.68 $ 20.69 $ 24.02      
Cap on the appreciation of the market price over the exercise price, option 1     $ 100 $ 100 $ 125      
Stock Options                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share based compensation expense     11,700,000 12,900,000 11,400,000      
Stock-based compensation capitalized     900,000 1,300,000 1,600,000      
Intrinsic value of options exercised     25,700,000 $ 7,400,000 $ 18,700,000      
Unrecognized compensation cost     $ 3,900,000          
Unrecognized compensation cost, period for recognition     2 years 2 months 12 days          
Restricted Stock                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Unrecognized compensation cost     $ 14,400,000          
Unrecognized compensation cost, period for recognition     1 year 9 months 18 days          
Granted (in shares) | shares     50,349 45,196 41,643      
2015 LTIP Units                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Granted (in shares) | shares 44,750              
Units issued subject only to performance measurement | shares 24,000              
Vesting percentage of units per year 20.00%              
Option grants to officers and employees vesting period 5 years              
Percent of awards earned           95.75%    
Conversion ratio, incentive units     1          
Liquidity measurement period     10 years          
Measurement period     10 years          
Series Z Incentive Units                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Granted (in shares) | shares   50,500         154,500  
Option grants to officers and employees vesting period   4 years            
Conversion ratio, incentive units             1  
Incentive units conversion ratio             one-for-one  
Series Z Incentive Units | Minimum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting percentage of units per year             0.00%  
Option grants to officers and employees vesting period     8 years          
Series Z Incentive Units | Maximum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting percentage of units per year             14.00%  
Option grants to officers and employees vesting period     15 years          
Long Term Incentive Plan 2014 Units                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting percentage of units per year   25.00%            
Conversion ratio, incentive units     1          
Liquidity measurement period     10 years          
Measurement period     10 years          
Vesting percentage for 2011 Z 1 Units to be convertible             100.00%  
Long Term Incentive Plans - Z Units and 2014 LTIP Units                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Share based compensation expense     $ 0 $ 0 $ 900,000      
Stock-based compensation capitalized     0 $ 0 $ 200,000      
Unrecognized compensation cost     $ 0          
Granted (in shares) | shares     0 0 0      
Intrinsic value of vested and unvested LTIP units     $ 37,400,000