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Stockholders' Equity (Details) | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2020 USD ($) $ / shares | Jun. 30, 2019 USD ($) shares | Jun. 30, 2020 USD ($) $ / shares shares | Jun. 30, 2019 USD ($) shares | Mar. 27, 2020 right $ / shares shares | Feb. 29, 2020 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Increase (decrease) in authorization amount |  |  |  |  |  | $ 194,200,000
Authorized amount of stock to be repurchased |  |  |  |  |  | $ 300,000,000.0
Treasury stock, acquired (in shares) | shares |  | 24,170 | 2,600,000 | 39,901 |  |
Payments for repurchase of common stock |  | $ 1,500,000 | $ 187,500,000 | $ 2,300,000 |  |
Value of treasury stock acquired |  | 1,500,000 | $ 187,500,000 | 2,300,000 |  |
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 | $ / shares |  |  |  |  | $ 0.273 |
Affiliated person common shares trigger percent |  |  |  |  | 0.10 |
Passive investor common shares trigger percent |  |  |  |  | 0.20 |
Performance-based Restricted Stock Units |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Value of treasury stock acquired | $ 200,000 | $ 300,000 | $ 12,000,000.0 | $ 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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