XML 42 R31.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Stock-Based Compensation Plans (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of information with respect to stock options granted | Information with respect to stock options granted under the 2009 and 1994 Plans is as follows:
| 2009 Plan shares |  | Weighted average exercise price per share |  | 1994 Plan shares |  | Weighted average exercise price per share
Options Outstanding, December 31, 2011 | 247,403 |  |  | $ | 98.42 |  |  | 1,112,959 |  |  | $ | 94.10 |
Exercised | (43,265 | ) |  | 85.09 |  |  | (364,519 | ) |  | 68.21 |
Granted | 115,303 |  |  | 133.16 |  |  | — |  |  | — |
Forfeited | (11,887 | ) |  | 115.15 |  |  | (28,610 | ) |  | 139.58 |
Options Outstanding, December 31, 2012 | 307,554 |  |  | $ | 112.67 |  |  | 719,830 |  |  | $ | 105.40 |
Exercised | (19,949 | ) |  | 84.43 |  |  | (24,292 | ) |  | 79.42 |
Granted | 215,230 |  |  | 129.03 |  |  | — |  |  | — |
Forfeited | (1,267 | ) |  | 131.56 |  |  | (4,012 | ) |  | 127.56 |
Options Outstanding, December 31, 2013 | 501,568 |  |  | $ | 120.77 |  |  | 691,526 |  |  | $ | 106.19 |
Exercised | (157,454 | ) |  | 116.40 |  |  | (342,743 | ) |  | 99.03 |
Granted | — |  |  | — |  |  | — |  |  | — |
Forfeited | (4,052 | ) |  | 131.05 |  |  | (76,381 | ) |  | 142.66 |
Options Outstanding, December 31, 2014 | 340,062 |  |  | $ | 122.67 |  |  | 272,402 |  |  | $ | 104.96 |
Options Exercisable: |  |  |  |  |  |  |  |  |  |  |
December 31, 2012 | 74,618 |  |  | $ | 97.46 |  |  | 719,830 |  |  | $ | 105.40 |
December 31, 2013 | 184,167 |  |  | $ | 107.18 |  |  | 691,526 |  |  | $ | 106.19 |
December 31, 2014 | 185,227 |  |  | $ | 116.71 |  |  | 272,402 |  |  | $ | 104.96 |
Summary of exercise prices and contractual lives of options outstanding | The following summarizes the exercise prices and contractual lives of options outstanding as of December 31, 2014:
2009 Plan Number of Options |  | Range—Exercise Price |  | Weighted Average Remaining Contractual Term (in years)
32,821 |  | $70.00 | - |  | $79.99 |  | 5.1
51,808 |  | 110.00 | - |  | 119.99 |  | 6.1
63,961 |  | 120.00 | - |  | 129.99 |  | 8.2
189,973 |  | 130.00 | - |  | 139.99 |  | 7.6
1,499 |  | 140.00 | - |  | 149.99 |  | 7.5
340,062 |  |  |  |  |  |  |
1994 Plan Number of Options |  | Range—Exercise Price |  | Weighted Average Remaining Contractual Term (in years)
43,806 |  | $40.00 | - |  | $49.99 |  | 4.1
92 |  | 60.00 | - |  | 69.99 |  | 0.1
730 |  | 70.00 | - |  | 79.99 |  | 0.5
66,101 |  | 80.00 | - |  | 89.99 |  | 3.1
52,720 |  | 90.00 | - |  | 99.99 |  | 1.1
108,953 |  | 140.00 | - |  | 149.99 |  | 2.1
272,402 |  |  |  |  |  |  |
Summary of weighted average fair value of employee stock options and associated assumptions used to calculate the value | The following table summarizes the weighted average fair value of employee stock options for 2013 and 2012 and the associated assumptions used to calculate the value. There were no stock options granted in 2014.
|  | 2013 |  | 2012
Weighted average fair value per share |  | $ | 26.78 |  |  | $ | 29.11 |
Life of options (in years) |  | 5.0 |  |  | 5.0 |
Dividend yield |  | 3.7 | % |  | 3.5 | %
Volatility |  | 34.00 | % |  | 35.00 | %
Risk-free interest rate |  | 0.91 | % |  | 0.87 | %

X
- Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration