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Share-Based Compensation - Summarized Information About Stock Awards (Details)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2021
USD ($)
$ / shares
shares
Outstanding:  
Aggregate intrinsic value $ 2,446
Weighted average remaining contractual life 5 years 6 months
Exercisable:  
Number of options (in shares) | shares 1,597
Weighted average exercise price (in dollars per share) | $ / shares $ 33.02
Aggregate intrinsic value $ 1,836
Weighted average remaining contractual life 4 years 4 months 24 days