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Equity Incentive Plans - Summary of Shares of Common Stock Issued (Details) - Omnibus Incentive 2015 Plan - shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
RSUs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Cumulative undelivered shares of common stock (in shares) 161,165 63,490
PSUs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Cumulative undelivered shares of common stock (in shares) 0 900,226
Common Stock | RSUs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares of common stock issued (in shares) 410,787 403,538
Shares of common stock withheld by the Company as payment by employees in lieu of cash to satisfy tax withholding obligations (in shares) (126,242) (122,795)
Net shares of common stock issued (in shares) 284,545 280,743
Cumulative undelivered shares of common stock (in shares) 220,582 63,490
Common Stock | PSUs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares of common stock issued (in shares) 900,226 0
Shares of common stock withheld by the Company as payment by employees in lieu of cash to satisfy tax withholding obligations (in shares) (325,246) 0
Net shares of common stock issued (in shares) 574,980 0
Cumulative undelivered shares of common stock (in shares) 0 900,226