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Stock Incentive Plans - Narrative (Details) - USD ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based payment, vesting period (years) 3 years    
Expected to vest one year from balance sheet date (in shares) 237,866    
Expected to vest two years from balance sheet date (in shares) 139,152    
Expected to vest three years from balance sheet date (in shares) 32,005    
Expected to vest four years from balance sheet (in shares) 63,976    
Unrecognized compensation cost $ 2,900,000    
Unrecognized compensation expense related to compensation awards, period for recognition (in months) 22 months    
Compensation expense $ 2,600,000 $ 3,100,000 $ 3,100,000
Number of shares, Granted (in shares) 162,806 349,091 324,502
Weighted-average grant date fair value, Granted (in dollars per share) $ 10.38 $ 10.19 $ 11.19
Number of shares, Vested (in shares) 310,117 287,148 244,411
Performance Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share based payment, vesting period (years) 3 years    
Expected to vest one year from balance sheet date (in shares) 243,022    
Expected to vest two years from balance sheet date (in shares) 287,477    
Expected to vest three years from balance sheet date (in shares) 266,033    
Unrecognized compensation cost $ 3,000,000.0    
Unrecognized compensation expense related to compensation awards, period for recognition (in months) 21 months    
Performance period 3 years    
Maximum possible payout to executive officer as a percentage of the target award (as a percent) 150.00%    
Compensation expense $ 2,400,000 $ 1,900,000 $ 2,500,000
Compensation expense, forfeitures   $ 1,000,000.0  
Number of shares, Granted (in shares) 296,050 293,111 266,009
Weighted-average grant date fair value, Granted (in dollars per share) $ 10.14 $ 9.82 $ 11.04
Number of shares, Vested (in shares) 251,375 218,514 200,374
Long-Term Incentive Plan Unit      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost $ 1,900,000    
Unrecognized compensation expense related to compensation awards, period for recognition (in months) 26 months    
Compensation expense $ 700,000 $ 0 $ 0
Number of shares, Granted (in shares) 281,925    
Weighted-average grant date fair value, Granted (in dollars per share) $ 10.65    
Number of shares, Vested (in shares) 0    
2016 Equity Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock option and Incentive plan, shares authorized (in shares) 6,082,664    
Number of shares issued or committed to issue (in shares) 1,351,686    
Maximum | Performance Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of total stockholder return for payout of shares (as a percent) 30.00%    
Minimum | Performance Stock Units | Executive Officer      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of total stockholder return for payout of shares (as a percent) 75.00%