Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
9 Months Ended | 12 Months Ended | 34 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|
Sep. 16, 2015 |
Feb. 19, 2015 |
Sep. 30, 2015 |
Sep. 30, 2014 |
Dec. 31, 2014 |
Jul. 31, 2014 |
Jan. 27, 2015 |
Sep. 27, 2011 |
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| Share Repurchase Program [Line Items] | ||||||||
| Share repurchased and retired | 819 | 1,000 | ||||||
| Value of shares repurchased and retired | $ 52,100 | $ 55,500 | $ 451,000 | |||||
| Outstanding common stock acquired, average price | $ 63.57 | $ 54.87 | $ 45.10 | |||||
| Dividends, Common Stock, Cash | $ 18,300 | $ 579,516 | $ 57,824 | |||||
| Common Stock, Dividends, Per Share, Cash Paid | $ 0.35 | $ 10.00 | ||||||
| 10 Million Share Program Approved 9/27/2011 [Member] | ||||||||
| Share Repurchase Program [Line Items] | ||||||||
| Stock Repurchase Program, Number of Shares Authorized to be Repurchased | 10,000 | |||||||
| 4 Million Share Program Approved 1/27/2015 [Member] | ||||||||
| Share Repurchase Program [Line Items] | ||||||||
| Stock Repurchase Program, Number of Shares Authorized to be Repurchased | 4,000 | |||||||
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- Definition [Line Items] for Share Repurchase Program [Table] No definition available.
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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available.
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- Definition Number of shares that have been repurchased and retired during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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