Stockholders' Equity - Summary of Restricted Stock, Restricted Stock Unit and Performance Stock Unit Activity (Parenthetical) (Detail) (Performance Stock Units [Member])
In Thousands, unless otherwise specified |
3 Months Ended |
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Mar. 31, 2015
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Performance Stock Units [Member]
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Schedule Of Restricted Stock Restricted Stock Unit And Performance Stock Unit Activity [Line Items] | |
Performance stock units, percentage of attainment level | 100.00% |
Common stock additional issue | 242 |