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v3.19.1

Common and Preferred Stock (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 01, 2015 | Apr. 30, 2019 | Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Nov. 06, 2014
Equity [Abstract] |  |  |  |  |  |
Increase in share repurchase authorized amount | $ 300,000,000.0 |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  | $ 400,000,000.0
Purchase of common stock (in shares) |  |  | 369,810 |  |  |
Repurchase of shares of common stock |  |  | $ 51,706,000 |  |  |
Remaining authorized repurchase amount |  |  | $ 325,300,000 |  |  |
Common stock, authorized (in shares) |  |  | 150,000,000 |  | 150,000,000 |
Common stock, par value (in dollars per share) |  |  | $ 0.01 |  | $ 0.01 |
Preferred stock, authorized (in shares) |  |  | 5,000,000 |  | 5,000,000 |
Preferred stock, par value (in dollars per share) |  |  | $ 0.01 |  | $ 0.01 |
Preferred stock, shares outstanding (in shares) |  |  | 0 |  | 0 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Purchase of common stock |  |  | $ 50,797,000 | $ 0 |  |
Subsequent Event |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Purchase of common stock |  | $ 900,000 |  |  |  |

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