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Earnings Per Share - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |
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Mar. 31, 2013
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Mar. 31, 2013
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Mar. 31, 2012
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| Earnings Per Share Disclosure [Line Items] | |||
| Convertible Notes | $ 172,500 | $ 172,500 | $ 172,500 |
| Number of common shares issue upon conversion | 4,248,761 | ||
| Average price of common stock | $ 41.38 | $ 41.38 | |
| Convertible notes conversion price | $ 40.60 | $ 40.60 | |
| Shares relating to the conversion premium | 20,022 | 20,022 |
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- Definition
Aggregate consideration on conversion shares No definition available.
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- Definition
Common Stock Average Price Per Share No definition available.
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- Details
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- Definition
Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The price per share of the conversion feature embedded in the debt instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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