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Number of Stock Options and Nonvested Share-Awards that were Issued or Outstanding but were Excluded in Calculating Diluted Earnings Per Share Because their Effect would have been Anti-Dilutive (Detail)
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3 Months Ended | |
|---|---|---|
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Mar. 31, 2015
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Mar. 31, 2014
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|
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Anti-dilutive securities excluded from the computation of dilutive EPS | 1,108,000 | 641,000 |
| Stock options | ||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
| Anti-dilutive securities excluded from the computation of dilutive EPS | 1,108,000 | 641,000 |