XML 50 R44.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Share-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2009
Share-Based Compensation [Abstract] |  |
Weighted-Average Assumptions Under Black-Scholes Model |  |
Weighted-average grant-date fair value |  | $3.45
Expected volatility |  | 23.53%-25.58%
Weighted-average expected volatility |  | 24.79%
Risk-free interest rate |  | 1.98%-2.97%
Expected dividend yield |  | 6.67%-6.94%
Expected term in months |  | 72
Summary Of Stock Option Activity |
|  | Shares |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Term (Years) |  |  | Aggregate Intrinsic Value (in 000's) |
Outstanding at January 1, 2011 |  |  | 615,676 |  |  | $ | 45.06 |  |  |  |  |  |  |  |  |
Granted |  |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  |  |
Exercised |  |  | (52,950 | ) |  | $ | 36.84 |  |  |  |  |  |  |  |  |
Cancelled or expired |  |  | (18,501 | ) |  |  | 0 |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2011 |  |  | 544,225 |  |  | $ | 46.09 |  |  |  | 5.2 |  |  | $ | 2,057 |
Exercisable at December 31, 2011 |  |  | 408,824 |  |  | $ | 48.45 |  |  |  | 4.7 |  |  | $ | 972 |
Summary Of Vested And Unvested RSU |
|  | 2011 |  |  | 2010 |
|  | Shares |  |  | Weighted- Average Fair Value per Share |  |  | Shares |  |  | Weighted- Average Fair Value per Share |
Outstanding at January 1 |  |  | 55,000 |  |  | $ | 41.40 |  |  |  | 0 |  |  | $ | 0.00 |
Granted |  |  | 80,000 |  |  |  | 40.22 |  |  |  | 55,000 |  |  |  | 41.40 |
Vested |  |  | 0 |  |  |  |  |  |  |  | 0 |  |  |  |  |
Forfeited/Canceled |  |  | 0 |  |  |  |  |  |  |  | 0 |  |  |  |  |
Outstanding at December 31 |  |  | 135,000 |  |  | $ | 40.70 |  |  |  | 55,000 |  |  | $ | 41.40 |

X
- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (c)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock
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 -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (c)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -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 -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -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

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