Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Narrative (Details)

v3.19.3.a.u2
Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Issuance of common stock, net of related expenses (in shares) 12,500,000    
Granted for purchase of previous plan's common stock (in shares) 0 0 0
Share-based payment award, expected award performance period 2 years    
Stock-based compensation expense $ 10,700 $ 11,300 $ 10,600
Capitalized stock-based compensation $ 5,766 $ 4,533 $ 4,246
Additional time over vesting period 1 year    
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment award, relative total shareholder return, target award, minimum 0.00%    
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment award, relative total shareholder Return, target award, maximum 200.00%    
Restricted stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted for purchase of previous plan's common stock (in shares) 8,673,254    
Outstanding awards, number (in shares) 2,009,144    
Share-based payment award, award vesting period 3 years    
Unrecognized compensation expense $ 14,600    
Weighted average period 2 years 1 month 6 days    
Restricted stock | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment award, award vesting period 1 year    
Restricted stock | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment award, award vesting period 4 years    
Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation expense $ 4,200    
Weighted average period 2 years 4 months 17 days    
Performance Shares | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment award, fair value assumptions, risk free interest rate, minimum 1.56%    
Share-based payment award, fair value assumptions, expected volatility rate, minimum 29.10%    
Performance Shares | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment award, fair value assumptions, risk free interest rate, maximum 2.42%    
Share-based payment award, fair value assumptions, expected volatility rate, maximum 85.10%    
Director [Member] | Restricted stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based payment award, award vesting period 1 year