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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2014
Stockholders' Equity Note [Abstract] |
Assumptions Used In The Weighted Average Fair Value Of The Stock Options Granted | The weighted average fair value of the Company’s stock options granted during 2014, 2013 and 2012 were $10.88, $10.45 and $6.73, respectively, using the following assumptions:
|  | 2014 |  | 2013 |  | 2012
Expected term (in years) |  | 6.79 |  |  | 6.92 |  |  | 6.75 |
Expected volatility |  | 26.98 | % |  | 31.46 | % |  | 34.90 | %
Expected dividend yield |  | 1.15 | % |  | 1.21 | % |  | 1.46 | %
Risk-free interest rate |  | 2.04 | % |  | 2.12 | % |  | 1.03 | %
Stock-based Compensation Expense | The Company recognized stock-based compensation expense in its Consolidated Financial Statements in 2014, 2013 and 2012 as follows:
|  | 2014 |  | 2013 |  | 2012
Stock-based compensation expense |  | $ | 13,463 |  |  | $ | 37,865 |  |  | $ | 15,736 |
Less: Deferred tax benefit |  | (4,704 | ) |  | (13,823 | ) |  | (5,650 | )
Stock-based compensation expense, net of tax |  | $ | 8,759 |  |  | $ | 24,042 |  |  | $ | 10,086 |
Stock Option Plans | This table presents certain information relating to the Company’s stock option plans for 2014, 2013 and 2012:
|  | Number of Shares |  | Weighted Avg. Price
Balance as of December 31, 2011 |  | 27,043,000 |  |  | $ | 20.06 |
Granted |  | 2,470,000 |  |  | 22.40 |
Exercised |  | (3,136,000 | ) |  | 15.19 |
Expired or canceled |  | (767,000 | ) |  | 22.61 |
Balance as of December 31, 2012 |  | 25,610,000 |  |  | $ | 20.81 |
Granted |  | 2,281,000 |  |  | 33.67 |
Exercised |  | (3,733,000 | ) |  | 17.26 |
Expired or canceled |  | (521,000 | ) |  | 22.25 |
Balance as of December 31, 2013 |  | 23,637,000 |  |  | $ | 22.58 |
Granted |  | 2,293,000 |  |  | 40.05 |
Exercised |  | (5,261,000 | ) |  | 19.52 |
Expired or canceled |  | (208,000 | ) |  | 28.83 |
Balance as of December 31, 2014 |  | 20,461,000 |  |  | $ | 25.26 |
Exercisable as of December 31, 2014 |  | 10,295,000 |  |  | $ | 20.58 |
Available for future grant as of December 31, 2014 |  | 28,626,000 |  |  |
Stock Options Outstanding And Exercisable | This table summarizes information relating to all options outstanding and exercisable at December 31, 2014:
|  |  | Options Outstanding at December 31, 2014 |  | Options Exercisable at December 31, 2014
Range of Exercise Prices (Per Share) | Number of Shares |  | Weighted Average Exercise Price (Per Share) |  | Weighted Average Remaining Contractual Life (Years) |  | Number of Shares |  | Weighted Average Exercise Price (Per Share) |  | Weighted Average Remaining Contractual Life (Years)
$ | 14.62 |  | - | 15.77 | 4,073,000 |  |  | $ | 15.19 |  |  | 5.48 |  | 2,915,000 |  |  | $ | 14.95 |  |  | 5.69
17.65 |  | - | 21.05 | 3,534,000 |  |  | 18.20 |  |  | 3.71 |  | 3,519,000 |  |  | 18.27 |  |  | 4.49
22.45 |  | - | 23.86 | 4,399,000 |  |  | 23.20 |  |  | 6.93 |  | 1,960,000 |  |  | 21.92 |  |  | 4.35
27.03 |  | - | 32.49 | 4,073,000 |  |  | 30.95 |  |  | 2.68 |  | 1,901,000 |  |  | 26.57 |  |  | 5.09
33.73 |  | - | 40.64 | 4,382,000 |  |  | 37.10 |  |  | 9.50 |  | — |  |  | 31.17 |  |  | 4.00
|  |  | 20,461,000 |  |  |  |  |  |  | 10,295,000 |  |  |  |  |
Common Stock Buyback | The following table provides the total number of shares repurchased and the related total costs in 2014, 2013 and 2012:
Year |  | Total Number of Shares Repurchased |  | Total Cost
2014 |  | 7,888,000 |  |  | $ | 278,357 |
2013 |  | 6,789,000 |  |  | 209,942 |
2012 |  | 7,528,000 |  |  | 155,264 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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