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Stockholders' Equity Stockholders' Equity (Stock-Based Compensation Plans) (Details) - USD ($)
3 Months Ended
Apr. 16, 2021
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Class of Stock [Line Items]        
Exercise of stock options, shares   18,736 101,000  
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price     $ 24.18  
Payment, Tax Withholding, Share-based Payment Arrangement   $ 289,000 $ 642,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Other Increases (Decreases) in Period, Description   8,125 62,766  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value   $ 25.88    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Returned for Payroll Taxes   1,601 8,011  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Exercise Price   $ 16.39   $ 17.38
Treasury Stock, Shares, Acquired   490,000 0  
Treasury Stock Acquired, Average Cost Per Share   $ 53.08 $ 0  
Treasury Stock, Value, Acquired, Cost Method   $ 26,010,000 $ 0  
Advsior        
Class of Stock [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross   93 142  
Share Based Compensation Arrangement By Share Based Payment Award, Options, Aggregate Grant Date Fair Value   $ 5,000 $ 5,000  
Stock options        
Class of Stock [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross   58,500 310,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value   $ 500,000 $ 1,300,000  
Proceeds from Stock Options Exercised   60,000 147,000  
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation   $ 82,000 $ 295,000  
Dividend yield   0.91% 0.91%  
Expected volatility   33.18% 34.35%  
Risk-free interest rate   1.89% 1.98%  
Expected holding period (years)   5 years 7 years  
Stock options | Black-Scholes        
Class of Stock [Line Items]        
Share price at grant date     $ 34.79  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period   7,000 3,840  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures Fair Valueriod   $ 71,000 $ 24,000  
Stock options | Black-Scholes | Five Year Vesting Period        
Class of Stock [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross   58,500 701,400  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value   $ 959,000 $ 7,115,000  
Stock options | Black-Scholes | Seven Year Vesting Period        
Class of Stock [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross   310,000    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value   $ 5,388,000    
Stock options | Monte-Carlo Pricing Model        
Class of Stock [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross     150,000  
Share price at grant date   $ 49.48 $ 34.79  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value     $ 1,700,000  
Restricted Stock Units (RSUs) [Member]        
Class of Stock [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   0 9,300  
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Forfeited In Period, Fair Value   $ 31,000 $ 0  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Grants in Period, Aggregate Grant Date Market Value   $ 0 $ 324,000  
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation   4,185 9,688  
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation   $ 207,000 $ 347,000  
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited   1,000 0  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 34.79  
Performance awards        
Class of Stock [Line Items]        
Share price at grant date $ 49.48      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   3,750 0  
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Granted In Period, Fair Value   $ 162,000 $ 0  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period   6,987 27,948  
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Forfeited In Period, Fair Value   $ 67,000 $ 268,000  
Expected volatility 44.00%      
Risk-free interest rate 1.75%      
Expected holding period (years) 2 years 10 months 6 days      
Good to Great Awards        
Class of Stock [Line Items]        
Share price at grant date $ 49.48      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period   27,448    
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Forfeited In Period, Fair Value   $ 1,400,000