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Stock Incentive Plans - Narrative (Details) - USD ($) |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Mar. 01, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Percentage of target award of maximum possible payout to executives |  |  |  | 150.00% |
Restricted Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Awards expected to vest in 2019 (in shares) |  | 9,542 |  | 9,542 |
Awards expected to vest in 2020 (in shares) |  | 229,336 |  | 229,336 |
Awards expected to vest in 2021 (in shares) |  | 130,622 |  | 130,622 |
Award expected to vest in 2022 (in shares) |  | 23,475 |  | 23,475 |
Unrecognized compensation cost |  | $ 2,600,000 |  | $ 2,600,000 |
Unrecognized compensation expense related to compensation awards, period for recognition (in months) |  |  |  | 18 months |
Compensation expense |  | $ 600,000 | $ 200,000 | $ 1,900,000 | $ 2,300,000
Award vesting period (in years) |  |  |  | 3 years |
Number of shares, granted (in shares) |  |  |  | 73,240 |
Weighted-average grant date fair value, shares granted (in dollars per share) |  |  |  | $ 10.65 |
Vested (in shares) |  |  |  | 300,575 |
Restricted Stock | Chief Financial Officer |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Accelerated compensation cost |  |  |  | $ 600,000 |
Performance Stock Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Awards expected to vest in 2020 (in shares) |  | 240,006 |  | 240,006 |
Awards expected to vest in 2021 (in shares) |  | 283,910 |  | 283,910 |
Award expected to vest in 2022 (in shares) |  | 262,732 |  | 262,732 |
Unrecognized compensation cost |  | $ 3,700,000 |  | $ 3,700,000 |
Unrecognized compensation expense related to compensation awards, period for recognition (in months) |  |  |  | 23 months |
Compensation expense |  | 1,100,000 | $ 400,000 | $ 2,500,000 | 1,300,000
Award vesting period (in years) |  |  |  | 3 years |
Performance period (in years) |  |  |  | 3 years |
Percentage of total stockholder return for payout of shares |  |  |  | 30.00% |
Number of shares, granted (in shares) |  |  |  | 296,050 |
Fair value at grant date (in dollars per share) | $ 9.68 |  |  |  |
Volatility | 24.30% |  |  |  |
Risk-free rate | 2.54% |  |  |  |
Fair value at grant date based on hotel market share (in dollars per share) | $ 10.65 |  |  |  |
Weighted-average grant date fair value, shares granted (in dollars per share) |  |  |  | $ 10.14 |
Vested (in shares) |  |  |  | 251,375 |
Performance Stock Units | Chief Financial Officer |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Accelerated compensation cost |  |  |  | $ (400,000) |
Performance Stock Units | Executive Officers |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Percentage of total stockholder return for payout of shares |  |  |  | 75.00% |
Number of shares, granted (in shares) | 296,050 |  |  |  |
Long-Term Incentive Plan Unit |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation cost |  | 2,100,000 |  | $ 2,100,000 |
Unrecognized compensation expense related to compensation awards, period for recognition (in months) |  |  |  | 29 months |
Compensation expense |  | $ 200,000 |  | $ 500,000 | $ 0
Number of shares, granted (in shares) |  |  |  | 281,925 |
Weighted-average grant date fair value, shares granted (in dollars per share) |  |  |  | $ 10.65 |
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 (up to) (in shares) |  | 6,082,664 |  | 6,082,664 |
Number of shares issued or committed to issue (in shares) |  | 1,262,120 |  | 1,262,120 |
Issued In 2016 | Performance Stock Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Percentage of payout based on total stockholder return |  |  |  | 75.00% |
Performance period (in years) |  |  |  | 3 years |
Percentage of payout based on improving market share |  |  |  | 25.00% |
Issued In 2017 | Performance Stock Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Performance period (in years) |  |  |  | 3 years |
Percentage of payout based on improving market share |  |  |  | 50.00% |
Issued In 2017 | Performance Stock Units | Executive Officers |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Percentage of total stockholder return for payout of shares |  |  |  | 50.00% |
Issued In 2018 | Performance Stock Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Performance period (in years) |  |  |  | 3 years |
Percentage of payout based on improving market share |  |  |  | 50.00% |
Issued In 2018 | Performance Stock Units | Executive Officers |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Percentage of total stockholder return for payout of shares |  |  |  | 50.00% |
Issued In 2019 | Performance Stock Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Performance period (in years) |  |  |  | 3 years |
Percentage of payout based on improving market share |  |  |  | 50.00% |
Issued In 2019 | Performance Stock Units | Executive Officers |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Percentage of total stockholder return for payout of shares |  |  |  | 50.00% |

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