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Stockholders' Equity - Narrative (Details) - $ / shares | Jun. 30, 2016 | Dec. 31, 2015
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Equity [Abstract] |  |
Common stock, shares authorized (in shares) | 300,000,000 | 300,000,000
Par value of common stock (in dollars per share) | $ 0.01 |
Authorized capitalization of preferred stock (in shares) | 3,500,000.0 |
Par value of preferred stock per share (in dollars per share) | $ 0.01 |
Number of shares authorized to be repurchased (in shares) | 2,400,000.0 |

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