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Common and Preferred Stock - Additional Information (Detail) (USD $) | 0 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 08, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Equity [Abstract] |  |  |  |
Increase in share repurchase authorized amount | $ 300,000,000 |  |  |
Purchase of common stock (in shares) |  | 2,916,280 | 2,182,946 |
Purchase of common stock |  | 167,503,000 | 89,563,000 | 0
Remaining authorized repurchase amount |  | $ 368,000,000 |  |
Common stock, shares authorized |  | 150,000,000 | 150,000,000 |
Common stock, par value |  | $ 0.01 | $ 0.01 |
Preferred stock, shares authorized |  | 5,000,000 | 5,000,000 |
Preferred stock, par value |  | $ 0.01 | $ 0.01 |
Preferred stock, shares issued |  | 0 | 0 |

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