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Stockholders' Equity Stockholders' Equity (Stock-Based Compensation Plans) (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Apr. 16, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Class of Stock [Line Items] |  |  |  |  |
Exercise of stock options, shares |  | 0 | 32,665 | 18,736 | 314,294
Share-based Compensation Arrangement by Share-based Payment Award, Options, Other Increases (Decreases) in Period |  |  | 17,790 | 8,125 | 166,359
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price |  |  | $ 21.81 |  | $ 21.78
Payment, Tax Withholding, Share-based Payment Arrangement |  |  |  | $ 287 | $ 1,433
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 |  |  | 2,192 | 1,601 | 20,163
Treasury stock acquired (in shares) |  | 0 | 1,203,493 | 695,496 | 1,528,197
Treasury Stock Acquired, Average Cost Per Share |  | $ 0 | $ 44.24 | $ 49.22 | $ 42.89
Treasury Stock, Value, Acquired, Cost Method |  | $ 0 | $ 53,239 | $ 34,234 | $ 65,540
Advsior |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |  | 155 | 112 | 374 | 389
Share Based Compensation Arrangement By Share Based Payment Award, Options, Aggregate Grant Date Fair Value |  | $ 5 | $ 5 | $ 15 | $ 15
Stock options |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value |  |  | 600 | 500 | 5,000
Proceeds from Stock Options Exercised |  | 0 | 0 | 60 | 880
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation |  | $ 0 | $ 82 | $ 82 | $ 1,058
Stock options | Black-Scholes |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |  |  |  | 58,500 | 701,400
Share price at grant date |  |  |  |  | $ 34.79
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value |  |  |  |  | $ 7,115
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period |  | 3,652 | 6,000 | 28,790 | 19,684
Share Based Compensation Arrangement By Share Based Payment Award, Options, Aggregate Grant Date Fair Value |  |  |  | $ 959 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures Fair Valueriod |  | $ 37 | $ 61 | $ 322 | $ 181
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 |  | 0 | 0 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value |  | $ 0 | $ 0 |  |
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 |  | 0 | 0 | 310,000 | 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value |  | $ 0 | $ 0 | $ 5,388 | $ 0
Stock options | Black-Scholes | Three Year Vesting Period |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |  | 12,600 | 0 | 12,600 | 0
Share price at grant date |  | $ 31.58 |  | $ 31.58 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Options, Grants in Period, Aggregate Grant Date Market Value |  | $ 143 | $ 0 | $ 143 | $ 0
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 |  | 0 | 0 | 0 | 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 |  | $ 0 | $ 0 | $ 0 | $ 1,684
Stock options | Monte-Carlo Pricing Model | Minimum |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common stock price for options to vest (in USD per share) |  | $ 53.39 |  | $ 53.39 |
Number of options available to vest (in shares) |  | 50,000 |  | 50,000 |
Stock options | Monte-Carlo Pricing Model | Maximum |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Common stock price for options to vest (in USD per share) |  | $ 77.34 |  | $ 77.34 |
Number of options available to vest (in shares) |  | 100,000 |  | 100,000 |
Restricted Stock Units (RSUs) |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  | 0 | 0 | 9,300
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Forfeited In Period, Fair Value |  | $ 16 | $ 0 | $ 63 | $ 27
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Grants in Period, Aggregate Grant Date Market Value |  |  | $ 0 | $ 0 | $ 324
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation |  | 0 | 711 | 4,136 | 10,399
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation |  | $ 0 | $ 28 | $ 205 | $ 375
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited |  | 500 | 0 | 1,950 | 966
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-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  | 0 | 29,548 | 27,013 | 39,802
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Granted In Period, Fair Value |  | $ 0 | $ 1,062 | $ 1,262 | $ 1,464
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period |  | 0 | 6,987 | 20,961 | 41,922
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Forfeited In Period, Fair Value |  | $ 0 | $ 101 | $ 201 | $ 598
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 |  | 0 | 0 | 27,448 | 0
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Forfeited In Period, Fair Value |  | $ 0 | $ 0 | $ 1,358,000 | $ 0

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