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Shareholders' Equity (Summary Of Stock Options And RSUs Granted Separated Into Ranges Of Exercise Price) (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |
Outstanding options | 6,127,382 | 5,456,344
Outstanding options, Weighted average exercise price | $ 8.52 | $ 8.23
Outstanding options, Weighted average remaining contractual life (years) | 6 years 6 months 7 days | 7 years 4 days
Exercisable options | 3,801,244 | 2,928,548
Exercisable options, Weighted average exercise price | $ 7.62 | $ 6.58
Exercisable options, Remaining contractual life (in years) | 5 years 6 months 4 days | 5 years 6 months 18 days
0.00-2.00 [Member] |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |
Exercise price, lower range limit | $ 0.00 | $ 0.00
Exercise price, upper range limit | $ 2.00 | $ 2.00
Outstanding options |  | 76,275
Outstanding options, Weighted average exercise price |  | $ 1.48
Outstanding options, Weighted average remaining contractual life (years) |  | 6 months 4 days
Exercisable options |  | 76,275
Exercisable options, Weighted average exercise price |  | $ 1.48
Exercisable options, Remaining contractual life (in years) |  | 6 months 4 days
2.34-3.90 [Member] |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |
Exercise price, lower range limit | $ 2.34 | $ 2.34
Exercise price, upper range limit | $ 3.90 | $ 3.90
Outstanding options | 94,975 | 98,475
Outstanding options, Weighted average exercise price | $ 3.89 | $ 3.89
Outstanding options, Weighted average remaining contractual life (years) | 2 years | 2 years 11 months 5 days
Exercisable options | 94,975 | 98,475
Exercisable options, Weighted average exercise price | $ 3.89 | $ 3.89
Exercisable options, Remaining contractual life (in years) | 2 years | 2 years 11 months 5 days
4.09-5.98 [Member] |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |
Exercise price, lower range limit | $ 4.02 | $ 4.09
Exercise price, upper range limit | $ 5.98 | $ 5.98
Outstanding options | 2,035,969 | 2,044,894
Outstanding options, Weighted average exercise price | $ 5.13 | $ 5.16
Outstanding options, Weighted average remaining contractual life (years) | 4 years 3 months 18 days | 5 years 18 days
Exercisable options | 1,998,447 | 1,794,049
Exercisable options, Weighted average exercise price | $ 5.12 | $ 5.10
Exercisable options, Remaining contractual life (in years) | 4 years 2 months 23 days | 4 years 9 months 15 days
6.12-7.96 [Member] |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |
Exercise price, lower range limit | $ 6.12 | $ 6.12
Exercise price, upper range limit | $ 7.96 | $ 7.96
Outstanding options | 98,364 | 60,864
Outstanding options, Weighted average exercise price | $ 6.87 | $ 6.80
Outstanding options, Weighted average remaining contractual life (years) | 6 years 10 months 10 days | 6 years 1 month 10 days
Exercisable options | 43,264 | 39,639
Exercisable options, Weighted average exercise price | $ 6.79 | $ 6.75
Exercisable options, Remaining contractual life (in years) | 3 years 9 months 15 days | 5 years 1 month 2 days
8.16-9.98 [Member] |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |
Exercise price, lower range limit | $ 8.16 | $ 8.16
Exercise price, upper range limit | $ 9.98 | $ 9.98
Outstanding options | 2,095,088 | 1,184,004
Outstanding options, Weighted average exercise price | $ 9.02 | $ 9.11
Outstanding options, Weighted average remaining contractual life (years) | 8 years 29 days | 8 years 3 months 4 days
Exercisable options | 757,064 | 588,290
Exercisable options, Weighted average exercise price | $ 9.12 | $ 9.13
Exercisable options, Remaining contractual life (in years) | 6 years 10 months 10 days | 7 years 7 months 2 days
10.19-14.3 [Member] |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |
Exercise price, lower range limit | $ 10.19 | $ 10.19
Exercise price, upper range limit | $ 14.3 | $ 14.30
Outstanding options | 1,702,986 | 1,841,832
Outstanding options, Weighted average exercise price | $ 12.33 | $ 12.31
Outstanding options, Weighted average remaining contractual life (years) | 7 years 10 months 10 days | 8 years 10 months 24 days
Exercisable options | 907,494 | 331,820
Exercisable options, Weighted average exercise price | $ 12.29 | $ 11.98
Exercisable options, Remaining contractual life (in years) | 7 years 7 months 28 days | 7 years 11 months 27 days
Restricted Stock Units (RSUs) [Member] |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |
RSUs outstanding | 100,000 | 150,000

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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + 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)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(2)(a) -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. + Details
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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 Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -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 (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 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 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 Reference 2: 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. + 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 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 Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -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 (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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