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STOCK COMPENSATION PLANS (Details 2) (USD $) | Dec. 31, 2011 Y
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Options Outstanding |
Number of Outstanding Options (in shares) | 945,080
Weighted Average Exercise Price (in dollars per share) | $ 27.19
Weighted Average Remaining Contractual Life (in years) | 2.28
Options Exercisable |
Number of Exercisable Options (in shares) | 758,166
Weighted Average Exercise Price (in dollars per share) | $ 29.34
Range of exercise price per share from $0.00 to $4.99 |
Options Outstanding |
Number of Outstanding Options (in shares) | 15,530
Weighted Average Exercise Price (in dollars per share) | $ 4.25
Weighted Average Remaining Contractual Life (in years) | 4.25
Range of exercise price per share from $5.00 to $9.99 |
Options Outstanding |
Number of Outstanding Options (in shares) | 7,292
Weighted Average Exercise Price (in dollars per share) | $ 5.43
Weighted Average Remaining Contractual Life (in years) | 4.21
Range of exercise price per share from $10.00 to $14.99 |
Options Outstanding |
Number of Outstanding Options (in shares) | 32,528
Weighted Average Exercise Price (in dollars per share) | $ 13.62
Weighted Average Remaining Contractual Life (in years) | 1.42
Options Exercisable |
Number of Exercisable Options (in shares) | 24,115
Weighted Average Exercise Price (in dollars per share) | $ 13.17
Range of exercise price per share from $15.00 to $19.99 |
Options Outstanding |
Number of Outstanding Options (in shares) | 117,511
Weighted Average Exercise Price (in dollars per share) | $ 17.73
Weighted Average Remaining Contractual Life (in years) | 2.47
Options Exercisable |
Number of Exercisable Options (in shares) | 90,117
Weighted Average Exercise Price (in dollars per share) | $ 17.63
Range of exercise price per share from $20.00 to $24.99 |
Options Outstanding |
Number of Outstanding Options (in shares) | 364,982
Weighted Average Exercise Price (in dollars per share) | $ 21.14
Weighted Average Remaining Contractual Life (in years) | 3.21
Options Exercisable |
Number of Exercisable Options (in shares) | 236,697
Weighted Average Exercise Price (in dollars per share) | $ 21.09
Range of exercise price per share from $30.00 to $34.99 |
Options Outstanding |
Number of Outstanding Options (in shares) | 18,320
Weighted Average Exercise Price (in dollars per share) | $ 33.82
Weighted Average Remaining Contractual Life (in years) | 0.57
Options Exercisable |
Number of Exercisable Options (in shares) | 18,320
Weighted Average Exercise Price (in dollars per share) | $ 33.82
Range of exercise price per share from $35.00 to $39.99 |
Options Outstanding |
Number of Outstanding Options (in shares) | 382,168
Weighted Average Exercise Price (in dollars per share) | $ 37.83
Weighted Average Remaining Contractual Life (in years) | 1.38
Options Exercisable |
Number of Exercisable Options (in shares) | 382,168
Weighted Average Exercise Price (in dollars per share) | $ 37.83
Range of exercise price per share from $40.00 to $44.99 |
Options Outstanding |
Number of Outstanding Options (in shares) | 6,749
Weighted Average Exercise Price (in dollars per share) | $ 40.36
Weighted Average Remaining Contractual Life (in years) | 1.66
Options Exercisable |
Number of Exercisable Options (in shares) | 6,749
Weighted Average Exercise Price (in dollars per share) | $ 40.36

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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c) -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a, b) -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average period remaining as of the balance sheet date until option expiration pertaining to the outstanding stock options for all option plans in the customized range of exercise prices, which may be expressed in a variety of ways (for example, years, months). + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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