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Quarterly Selected Financial Data (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended | ||||||
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Dec. 31, 2013
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Quarterly Financial Information [Line Items] | ||||||||
| Non cash expense | $ 4.1 | $ 9.3 | $ 69.1 | $ 110.4 | ||||
| Share-based compensation | $ 4.5 | $ 23.1 | $ 5.2 | $ 1.2 | ||||
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- Details
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| X | ||||||||||
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- Definition
Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Other expenses or losses included in net income that result in no cash outflows or inflows in the period and are not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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