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Stockholders' Equity (Details) |  |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Nov. 10, 2020 shares | Oct. 28, 2020 | Sep. 30, 2020 USD ($) $ / shares | Sep. 30, 2019 USD ($) shares | Sep. 30, 2020 USD ($) $ / shares shares | Sep. 30, 2019 USD ($) shares | Oct. 31, 2020 USD ($) | Mar. 27, 2020 right $ / shares shares
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Treasury stock, acquired (in shares) | shares |  |  |  | 700,000 | 2,600,000 | 700,000 |  |
Payments for repurchase of common stock |  |  |  | $ 50,000,000.0 | $ 187,500,000 | $ 52,300,000 |  |
Value of treasury stock acquired |  |  |  | 50,000,000.0 | $ 187,500,000 | 52,300,000 |  |
Number of rights authorized and declared per common share | right |  |  |  |  |  |  |  | 1
Preferred stock par or stated value (in dollars per share) | $ / shares |  |  | $ 0.01 |  | $ 0.01 |  |  |
Number of securities per each right | shares |  |  |  |  |  |  |  | 0.001
Exercise price (in dollars per share) | $ / shares |  |  |  |  |  |  |  | $ 0.273
Subsequent Event |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Increase (decrease) in authorization amount |  |  |  |  |  |  | $ 168,700,000 |
Authorized amount of stock to be repurchased |  |  |  |  |  |  | $ 300,000,000.0 |
Stock split ratio |  | 4 |  |  |  |  |  |
Number of additional shares received per share owned (in shares) | shares | 3 |  |  |  |  |  |  |
Performance-based Restricted Stock Units |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Value of treasury stock acquired |  |  | $ 100,000 | $ 0.0 | $ 12,100,000 | $ 3,200,000 |  |
February 2016 Program |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |  |  |
Remaining shares under share repurchase authorization |  |  | $ 131,300,000 |  | $ 131,300,000 |  |  |

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