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Stock-Based Compensation - Narrative (Details)
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
plan
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of stock-based compensation plans | plan 2
Options expiration period 10 years
Intrinsic value of fully-vested stock options outstanding | $ $ 0.6
Stock option awards granted 0
2006 Plan  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares available for grant 880,798