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SHAREHOLDERS' EQUITY (Summary Of Stock Options And RSUs Granted Separated Into Ranges Of Exercise Price) (Details)	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding options | shares	7,537,708
Options and RSUs exercisable | shares	4,021,641
RSUs 0.0 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower range limit	$ 0.00
Exercise price, upper range limit	$ 0.00
RSUs outstanding | shares	47,535
Outstanding options, Weighted average exercise price	$ 0.00
Options and RSUs exercisable | shares
0.01-2.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower range limit	$ 0.01
Exercise price, upper range limit	$ 2.00
Outstanding options | shares	4,015,854
Outstanding options, Weighted average remaining contractual life (years)	4 years 7 months 24 days
Outstanding options, Weighted average exercise price	$ 1.19
Options and RSUs exercisable | shares	1,064,599
Exercisable options, Remaining contractual life (in years)	4 years 4 months 10 days
Exercisable options, Weighted average exercise price	$ 1.19
2.01-4.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower range limit	2.01
Exercise price, upper range limit	$ 4.00
Outstanding options | shares	921,522
Outstanding options, Weighted average remaining contractual life (years)	4 years 8 months 19 days
Outstanding options, Weighted average exercise price	$ 2.49
Options and RSUs exercisable | shares	420,067
Exercisable options, Remaining contractual life (in years)	4 years 4 months 13 days
Exercisable options, Weighted average exercise price	$ 2.62
4.01-6.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower range limit	4.01
Exercise price, upper range limit	$ 6.00
Outstanding options | shares	933,139
Outstanding options, Weighted average remaining contractual life (years)	2 years 11 months 9 days
Outstanding options, Weighted average exercise price	$ 5.22
Options and RSUs exercisable | shares	917,317
Exercisable options, Remaining contractual life (in years)	2 years 10 months 17 days
Exercisable options, Weighted average exercise price	$ 5.23
6.01-8.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower range limit	6.01
Exercise price, upper range limit	$ 8.00
Outstanding options | shares	41,500
Outstanding options, Weighted average remaining contractual life (years)	5 years 4 months 21 days
Outstanding options, Weighted average exercise price	$ 6.84
Options and RSUs exercisable | shares	41,500
Exercisable options, Remaining contractual life (in years)	5 years 4 months 21 days
Exercisable options, Weighted average exercise price	$ 6.84
8.01-10.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower range limit	8.01
Exercise price, upper range limit	$ 10.00
Outstanding options | shares	845,074
Outstanding options, Weighted average remaining contractual life (years)	4 years 2 months 1 day
Outstanding options, Weighted average exercise price	$ 9.07
Options and RSUs exercisable | shares	845,074
Exercisable options, Remaining contractual life (in years)	4 years 2 months 1 day
Exercisable options, Weighted average exercise price	$ 9.07
10.01-13.04 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower range limit	10.01
Exercise price, upper range limit	$ 13.04
Outstanding options | shares	733,084
Outstanding options, Weighted average remaining contractual life (years)	3 years 11 months 9 days
Outstanding options, Weighted average exercise price	$ 12.35
Options and RSUs exercisable | shares	733,084
Exercisable options, Remaining contractual life (in years)	3 years 11 months 9 days
Exercisable options, Weighted average exercise price	$ 12.35

X

- 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

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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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

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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

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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (g)
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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

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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)
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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
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-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
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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)
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