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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Statement of Stockholders' Equity [Abstract] |  |  |
Purchase of common stock, shares | 1,300,000 | 2,077,101 | 0
Dividends declared per share | $ 4.110 | $ 0.340 | $ 0.270
Equity compensation activity, shares | 102,552 | 109,852 | 242,253

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