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Stock-Based Compensation - Additional Information (Details) | 12 Months Ended
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Dec. 31, 2019 USD ($) shares | Dec. 31, 2018 USD ($) shares | Dec. 31, 2017 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Common stock available for issuance (in shares) | shares | 552,999 |  |
Common stock reserved for issuance (in shares) | shares | 2,820,000 |  |
Minimum employee tax withholding obligations related to RSUs | $ 7,696,000 | $ 6,591,000 | $ 3,499,000
Share-based payment arrangement, amount capitalized | 0 | 0 | 0
Stock-based compensation expense | $ 22,232,000 | $ 23,116,000 | 20,288,000
Weighted-average remaining contractual term, stock options outstanding (in years) | 9 months 18 days | 6 months |
Weighted-average remaining contractual term, stock options vested and exercisable (in years) | 9 months 18 days |  |
Aggregate intrinsic value, stock options vested and exercisable | $ 500,000 |  |
Intrinsic value, stock options exercised | 6,400,000 | $ 3,000,000.0 | 2,500,000
Cash received from stock option exercises | 726,000 | $ 819,000 | $ 111,000
Restricted stock units (RSUs) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Grant-date intrinsic value | $ 19,700,000 |  |
Share settlement under RSUs (in shares) | shares | 66,441 | 41,101 | 32,716
Minimum employee tax withholding obligations related to RSUs | $ 6,900,000 | $ 5,300,000 | $ 3,500,000
Unamortized stock-based compensation expense | $ 27,800,000 | $ 32,200,000 |
Weighted average remaining amortization period | 1 year 3 months 18 days | 1 year 6 months |
Restricted stock units (RSUs), performance-based |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Awards granted (in shares) | shares | 52,960 | 68,803 |
Period for recognition of compensation expense | 3 years |  |
Stock-based compensation expense | $ 7,500,000 | $ 8,200,000 |
Unamortized stock-based compensation expense | $ 10,700,000 | $ 11,400,000 |
Employee Stock Option |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Contractual life in years | 10 years |  |
Vesting period of stock options in years | 3 years |  |
Minimum | Restricted stock units (RSUs) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Contractual life in years | 1 year |  |
Maximum | Restricted stock units (RSUs) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Contractual life in years | 3 years |  |
Common Stock | Restricted stock units (RSUs) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Conversion ratio | 1 |  |

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