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Employee Benefit Plans (Schedule of Ranges of Outstanding And Exercisable Stock Options) (Details)
shares in Thousands
12 Months Ended
Dec. 31, 2021
$ / shares
shares
$18.58 - $25.37  
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise price, lower range (USD per share) $ 18.58
Exercise price, upper range (USD per share) $ 25.37
Number of outstanding options (in shares) | shares 264
Outstanding options, weighted-average remaining contractual life 4 years 1 month 2 days
Outstanding options, weighted- average exercise price per share (in dollars per share) $ 23.43
Number of exercisable options (in shares) | shares 264
Exercisable options, weighted-average exercise price (in dollars per share) $ 23.43
$26.61 - $26.61  
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise price, lower range (USD per share) 26.61
Exercise price, upper range (USD per share) $ 26.61
Number of outstanding options (in shares) | shares 370
Outstanding options, weighted-average remaining contractual life 7 years 6 months 18 days
Outstanding options, weighted- average exercise price per share (in dollars per share) $ 26.61
Number of exercisable options (in shares) | shares 186
Exercisable options, weighted-average exercise price (in dollars per share) $ 26.61
$38.32 - $41.67  
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise price, lower range (USD per share) 38.32
Exercise price, upper range (USD per share) $ 41.67
Number of outstanding options (in shares) | shares 278
Outstanding options, weighted-average remaining contractual life 6 years 1 month 13 days
Outstanding options, weighted- average exercise price per share (in dollars per share) $ 41.37
Number of exercisable options (in shares) | shares 267
Exercisable options, weighted-average exercise price (in dollars per share) $ 41.42
$18.58 - $41.67  
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise price, lower range (USD per share) 18.58
Exercise price, upper range (USD per share) $ 41.67
Number of outstanding options (in shares) | shares 912
Outstanding options, weighted-average remaining contractual life 6 years 1 month 9 days
Outstanding options, weighted- average exercise price per share (in dollars per share) $ 30.19
Number of exercisable options (in shares) | shares 717
Exercisable options, weighted-average exercise price (in dollars per share) $ 30.96