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Stock-Based Plans - Narrative (Details) - USD ($)
$ / shares in Units, shares in Thousands
1 Months Ended 12 Months Ended
May 31, 2021
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
ESPP, offering period       6 months      
Purchase price of common stock, percent       85.00%      
2011 Equity Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Additional awards authorized for issuance (in shares) 4,100 1,400 5,000        
Equity Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total unrecognized compensation cost related to stock-based compensation arrangements       $ 300,000      
Weighted average remaining contractual terms       9 months 18 days      
Tranche One              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of months over which options vest ratably       36 months      
Tranche Two              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of months over which options vest ratably       48 months      
Restricted Stock Units (RSUs)              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period       4 years      
Award vesting percentage       25.00%      
Aggregate intrinsic value, vested and released       $ 11,200,000 $ 8,000,000 $ 5,800,000  
Total unrecognized compensation cost related to stock-based compensation arrangements       $ 22,500,000      
Weighted average remaining contractual terms       2 years 6 months      
Granted (in shares)       3,295 3,788 1,808  
Awards outstanding       5,141 4,862 2,551 1,812
Weighted - average grant date fair value       $ 5.18 $ 4.98 $ 7.43 $ 7.09
Restricted Stock Units (RSUs) | Tranche One              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Rate at which outstanding options vest on the first anniversary of the option grant date       25.00%      
Stock options, restricted stock units and performance stock awards              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Expiration period       10 years      
Stock option grants exercise price minimum percentage on fair market value       100.00%      
Phantom Share Units (PSUs)              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting percentage of target       118.60%      
Granted (in shares)           300  
Performance Shares              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period       3 years      
Total unrecognized compensation cost related to stock-based compensation arrangements       $ 3,800,000      
Weighted average remaining contractual terms       1 year 9 months 18 days      
Granted (in shares)       396 509 401  
Awards outstanding       1,210 962 547 155
Weighted - average grant date fair value       $ 10.11 $ 9.74 $ 15.09 $ 10.09
Performance Shares | Certain Employee              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Awards outstanding       29      
Weighted - average grant date fair value       $ 6.46      
Performance Shares | Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Percentage of performance period       0.00%      
Performance Shares | Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Percentage of performance period       200.00%      
Employee Stock | 2017 Employee Stock Purchase Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Maximum employee subscription rate       10.00%      
Maximum employee purchase amount       $ 25,000