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Stock-Based Compensation | 12 Months Ended
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Dec. 31, 2012
Share-based Compensation [Abstract] |
Stock-Based Compensation | Stock-Based Compensation The Company recognizes compensation expense for all share-based payments granted based on the grant-date fair value estimated in accordance with the provisions of ASC 718-10. Compensation expense is recognized on a straight-line basis over the options’ or other awards’ estimated lives for fixed awards with ratable vesting provisions. Under the Company’s 2007 Incentive Plan (“2007 Plan”), the Company's principal stock compensation plan prior to May 9, 2012, the Company reserved up to a maximum of 3,200 shares of common stock for issuance upon the grant or exercise of stock options, restricted stock, restricted stock units (“RSUs”) and other types of awards, to directors and key employees through 2017. Option awards are granted with an exercise price equal to the market price of the Company’s common stock on the date of the grant and generally vest between three and five years with a 10-year contractual term. Restricted stock and RSUs are granted with a price equal to the market price of the Company’s common stock on the date of the grant and generally vest between three and five years. On May 9, 2012, the Company's stockholders approved the 2012 Long-Term Incentive Plan (“2012 Plan”), which allows the Company to reserve up to a maximum of 3,200 shares of common stock for issuance upon the grant or exercise of awards under the 2012 Plan. No additional awards may be granted under the 2007 Plan after May 9, 2012. As of December 31, 2012, there have been no awards granted under the 2012 Plan. Additional information relating to the Company’s stock option plans follows:
| 2012 |  | 2011 |  | 2010
Options outstanding at beginning of year | 1,305 |  |  | 1,371 |  |  | 1,481 |
Options granted | 83 |  |  | 76 |  |  | 40 |
Options exercised | (277 | ) |  | (82 | ) |  | (74 | )
Options forfeited and expired | (116 | ) |  | (60 | ) |  | (76 | )
Options outstanding at end of year | 995 |  |  | 1,305 |  |  | 1,371 |
Options exercisable at end of year | 814 |  | 1,106 |  |  | 1,160 |
Option prices per share: |  |  |  |  |
Options granted during the year | 66.14 |  |  | 57.34 |  |  | 46.80 |
Options exercised during the year | 28.37-88.33 |  |  | 28.37-63.14 |  |  | 16.66-57.88 |
Options forfeited and expired during the year | 46.80-93.65 |  |  | 28.37-93.65 |  |  | 22.63-93.65 |
Options outstanding at end of year | 28.37-93.65 |  |  | 28.37-93.65 |  |  | 28.37-93.65 |
Options exercisable at end of year | 28.37-93.65 |  |  | 28.37-93.65 |  |  | 28.37-93.65 |
During 2012, 2011 and 2010, a total of 2, 3 and 4 shares, respectively, were awarded to the non-employee directors in lieu of cash for their annual retainers. In addition, the Company maintains an employee incentive program that awards restricted stock on the attainment of certain service criteria. The outstanding awards related to these programs and related compensation expense was not significant for any of the years ended December 31, 2012, 2011 or 2010. The Company’s Board of Directors has authorized the repurchase of up to 15,000 shares of the Company’s outstanding common stock. For the years ended December 31, 2012 and 2011, no shares of the Company’s common stock were purchased. For the year ended December 31, 2010, the Company repurchased approximately 6 shares at an average price of $56.94 in connection with the exercise of stock options under the Company’s 2007 Incentive Plan. Since the inception of the program, a total of approximately 11,518 shares have been repurchased at an aggregate cost of approximately $335,110. All of these repurchases have been financed through the Company’s operations and banking arrangements. The fair value of option awards is estimated on the date of grant using the Black-Scholes-Merton valuation model that uses the assumptions noted in the following table. Expected volatility is based on the historical volatility of the Company’s common stock and other factors. The Company uses historical data to estimate option exercise and forfeiture rates within the valuation model. Optionees that exhibit similar option exercise behavior are segregated into separate groups within the valuation model. The expected term of options granted represents the period of time that options granted are expected to be outstanding. The risk-free rate is based on U.S. Treasury yields in effect at the time of the grant for the expected term of the award.
| 2012 |  | 2011 |  | 2010
Dividend yield | — |  |  | — |  |  | — |
Risk-free interest rate | 1.0 | % |  | 2.0 | % |  | 2.3 | %
Volatility | 47.1 | % |  | 48.1 | % |  | 45.2 | %
Expected life (years) | 5 |  |  | 5 |  |  | 5 |
A summary of the Company’s options under the 2002 and 2007 Plan as of December 31, 2012, and changes during the year then ended is presented as follows:
| Shares |  | Weighted average exercise price |  | Weighted average remaining contractual term (years) |  | Aggregate intrinsic value
Options outstanding, December 31, 2011 | 1,305 |  |  | $ | 72.08 |  |  |  |  |
Granted | 83 |  |  | 66.14 |  |  |  |  |
Exercised | (277 | ) |  | 60.76 |  |  |  |  |
Forfeited and expired | (116 | ) |  | 70.93 |  |  |  |  |
Options outstanding, December 31, 2012 | 995 |  |  | 74.87 |  |  | 3.9 |  | $ | 15,643 |
Vested and expected to vest as of December 31, 2012 | 989 |  |  | $ | 74.95 |  |  | 3.9 |  | $ | 15,453 |
Exercisable as of December 31, 2012 | 814 |  |  | $ | 77.78 |  |  | 3.0 |  | $ | 10,437 |
The weighted-average grant-date fair value of an option granted during 2012, 2011 and 2010 was $28.71, $25.39 and $19.10, respectively. The total intrinsic value of options exercised during the years ended December 31, 2012, 2011, and 2009 was $4,226, $1,148 and $1,714, respectively. Total compensation expense recognized for the years ended December 31, 2012, 2011 and 2010 was $2,176 ($1,378, net of tax), $1,885 ($1,194, net of tax) and $2,436 ($1,543, net of tax), respectively, which was allocated to selling, general and administrative expenses. The remaining unamortized expense for non-vested compensation expense as of December 31, 2012 was $2,096 with a weighted average remaining life of 1.4 years. The following table summarizes information about the Company’s stock options outstanding as of December 31, 2012:
| Outstanding |  | Exercisable
Exercise price range | Number of shares |  | Average life |  | Average price |  | Number of shares |  | Average price
Under $57.34 | 171 |  |  | 6.4 |  | $ | 47.90 |  |  | 98 |  |  | $ | 44.34 |
$57.88-$73.45 | 197 |  |  | 4.4 |  | 69.97 |  |  | 115 |  |  | 72.75 |
$73.54-$81.40 | 162 |  |  | 4.7 |  | 74.91 |  |  | 136 |  |  | 74.99 |
$81.90-$86.51 | 167 |  |  | 2.8 |  | 83.16 |  |  | 167 |  |  | 83.16 |
$87.87-$88.00 | 35 |  |  | 2.8 |  | 87.96 |  |  | 35 |  |  | 87.96 |
$88.33-$93.65 | 263 |  |  | 2.3 |  | 89.08 |  |  | 263 |  |  | 89.08 |
Total | 995 |  |  | 3.9 |  | $ | 74.87 |  |  | 814 |  |  | $ | 77.78 |
A summary of the Company’s RSUs under the 2007 Plan as of December 31, 2012, and changes during the year then ended is presented as follows:
| Shares |  | Weighted average price |  | Weighted average remaining contractual term (years) |  | Aggregate intrinsic value
Restricted Stock Units outstanding, December 31, 2011 | 495 |  |  | $ | 50.76 |  |  |  |  |
Granted | 260 |  |  | 65.98 |  |  |  |  |
Released | (140 | ) |  | 43.55 |  |  |  |  |
Forfeited | (10 | ) |  | 59.07 |  |  |  |  |
Restricted Stock Units outstanding, December 31, 2012 | 605 |  |  | 57.87 |  |  | 2.3 |  | $ | 54,774 |
Expected to vest as of December 31, 2012 | 551 |  |  |  |  |  | 2.1 |  | $ | 49,872 |
The Company recognized stock-based compensation costs related to the issuance of RSU’s of $11,887 ($7,530, net of taxes), $8,186 ($5,186, net of taxes) and $4,262 ($2,700, net of taxes) for the years ended December 31, 2012, 2011 and 2010, respectively, which has been allocated to selling, general and administrative expenses. Pre-tax unrecognized compensation expense for unvested RSU’s granted to employees, net of estimated forfeitures, was $15,437 as of December 31, 2012, and will be recognized as expense over a weighted-average period of approximately 2.9 years. Additional information relating to the Company’s RSUs under the 2007 Plan is as follows:
| 2012 |  | 2011 |  | 2010
Restricted Stock Units outstanding, January 1 | 495 |  |  | 404 |  |  | 359 |
Granted | 260 |  |  | 196 |  |  | 149 |
Released | (140 | ) |  | (91 | ) |  | (95 | )
Forfeited | (10 | ) |  | (14 | ) |  | (9 | )
Restricted Stock Units outstanding, December 31 | 605 |  |  | 495 |  |  | 404 |
Expected to vest as of December 31 | 551 |  |  | 438 |  |  | 343 |

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 93-6 -Paragraph 53 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64, 65, A240 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 + Details
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