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Stock Plans and Management Compensation (Details 2) (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013
Range 01 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise price range, lower range limit (in dollars per share) | $ 3.37
Exercise price range, upper range limit (in dollars per share) | $ 5.99
Number of outstanding options (in shares) | 501
Outstanding options, weighted average remaining years of contractual life (in years) | 5 years
Outstanding options, weighted average exercise price (in dollars per share) | $ 5.25
Number of options exercisable (in shares) | 501
Exercisable options, weighted average remaining years of contractual life (in years) | 5 years
Exercisable options, weighted average exercise price (in dollars per share) | $ 5.25
Range 02 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise price range, lower range limit (in dollars per share) | $ 6.00
Exercise price range, upper range limit (in dollars per share) | $ 19.90
Number of outstanding options (in shares) | 1,631
Outstanding options, weighted average remaining years of contractual life (in years) | 5 years 8 months 12 days
Outstanding options, weighted average exercise price (in dollars per share) | $ 12.46
Number of options exercisable (in shares) | 1,102
Exercisable options, weighted average remaining years of contractual life (in years) | 5 years 7 months 6 days
Exercisable options, weighted average exercise price (in dollars per share) | $ 12.83
Range 03 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise price range, lower range limit (in dollars per share) | $ 19.91
Exercise price range, upper range limit (in dollars per share) | $ 39.56
Number of outstanding options (in shares) | 1,407
Outstanding options, weighted average remaining years of contractual life (in years) | 5 years 8 months 12 days
Outstanding options, weighted average exercise price (in dollars per share) | $ 26.22
Number of options exercisable (in shares) | 718
Exercisable options, weighted average remaining years of contractual life (in years) | 4 years 4 months 24 days
Exercisable options, weighted average exercise price (in dollars per share) | $ 29.89
Range 04 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise price range, lower range limit (in dollars per share) | $ 39.57
Exercise price range, upper range limit (in dollars per share) | $ 46.25
Number of outstanding options (in shares) | 286
Outstanding options, weighted average remaining years of contractual life (in years) | 1 year 1 month 6 days
Outstanding options, weighted average exercise price (in dollars per share) | $ 46.04
Number of options exercisable (in shares) | 286
Exercisable options, weighted average remaining years of contractual life (in years) | 1 year 1 month 6 days
Exercisable options, weighted average exercise price (in dollars per share) | $ 46.04

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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 Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + 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 (g) -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 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 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 Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + 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 (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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