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Per Share Information - Basic and Diluted Earnings Per Share (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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| Amounts attributable to common stock: | ||
| Net income attributable to common stock | $ 53,484us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ 54,408us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic |
| Weighted average shares: | ||
| Weighted average shares outstanding for basic earnings per share | 215,473us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 219,033us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |
| Effect of dilutive stock options | 17us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 42us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements |
| Weighted average shares outstanding for diluted earnings per share | 215,490us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 219,075us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |
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- Definition
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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