Net Income Per Share (Schedule Of Net Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
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| Earnings Per Share [Line Items] | ||||
| Net income to shareholders | $ 91,369 | $ 40,068 | $ 282,361 | $ 127,784 |
| Adjustment of redeemable noncontrolling interests | 3,062 | (2,701) | 1,715 | (2,584) |
| Adjusted net income to shareholders | $ 94,431 | $ 37,367 | $ 284,076 | $ 125,200 |
| Basic common shares outstanding | 13,975 | 13,984 | 13,973 | 13,989 |
| Diluted shares outstanding | 14,052 | 14,055 | 14,057 | 14,056 |
| Basic net income per share | $ 6.76 | $ 2.67 | $ 20.33 | $ 8.95 |
| Diluted net income per share | $ 6.72 | $ 2.66 | $ 20.21 | $ 8.91 |
| Stock Options [Member] | ||||
| Earnings Per Share [Line Items] | ||||
| Dilutive potential common shares | 9 | 10 | 10 | 11 |
| Restricted Stock Units (RSUs) [Member] | ||||
| Earnings Per Share [Line Items] | ||||
| Dilutive potential common shares | 68 | 61 | 74 | 56 |
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- Definition Net income (loss) after adjustment for temporary equity accretion to redemption value. No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. 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 share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of decrease to net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders. No definition available.
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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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- 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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