Share based compensation arrangement by share based payment award options vested and exercisable outstanding number.

No definition available.

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- Definition

Share based compensation arrangement by share based payment award options vested and exercisable weighted average exercise price.

+ References

No definition available.

+ Details

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- Definition

Share based compensation arrangement by share based payment award options vested and exercisable weighted average remaining contractual term.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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Period Type:	instant

- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ 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)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average remaining contractual term for option awards outstanding, 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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Shareholders' Equity and Common Stock Equivalents (Details 2) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Options	669,693	634,437	956,814
Total Outstanding Options, Weighted Average Option Price per Share	$ 24.00	$ 21.22
Total Outstanding Options, Weighted Average Remaining Term	5 years 8 months 12 days
Vested and Exercisable Options	281,632	208,578
Vested and Exercisable Options, Weighted Average Option Price per Share	$ 19.32	$ 17.20	$ 15.78
Vested and Exercisable Options, Weighted Average Remaining Term	3 years 7 months 6 days
Exercise Price Range Range One [Member]
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Options	103,368
Total Outstanding Options, Weighted Average Option Price per Share	$ 16.14
Total Outstanding Options, Weighted Average Remaining Term	1 year 10 months 24 days
Vested and Exercisable Options	103,368
Vested and Exercisable Options, Weighted Average Option Price per Share	$ 16.14
Vested and Exercisable Options, Weighted Average Remaining Term	1 year 10 months 24 days
Exercise Price Range Range One [Member] \| Minimum [Member]
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Weighted Average Option Price per Share	$ 6.91
Exercise Price Range Range One [Member] \| Maximum [Member]
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Weighted Average Option Price per Share	$ 17.01
Exercise Price Range Range Two [Member]
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Options	257,921
Total Outstanding Options, Weighted Average Option Price per Share	$ 19.32
Total Outstanding Options, Weighted Average Remaining Term	3 years 8 months 12 days
Vested and Exercisable Options	139,216
Vested and Exercisable Options, Weighted Average Option Price per Share	$ 18.98
Vested and Exercisable Options, Weighted Average Remaining Term	3 years 7 months 6 days
Exercise Price Range Range Two [Member] \| Minimum [Member]
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Weighted Average Option Price per Share	$ 17.32
Exercise Price Range Range Two [Member] \| Maximum [Member]
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Weighted Average Option Price per Share	$ 22.69
Exercise Price Range Range Three [Member]
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Options	308,404
Total Outstanding Options, Weighted Average Option Price per Share	$ 30.54
Total Outstanding Options, Weighted Average Remaining Term	8 years 7 months 6 days
Vested and Exercisable Options	39,048
Vested and Exercisable Options, Weighted Average Option Price per Share	$ 28.94
Vested and Exercisable Options, Weighted Average Remaining Term	8 years 1 month 6 days
Exercise Price Range Range Three [Member] \| Minimum [Member]
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Weighted Average Option Price per Share	$ 28.88
Exercise Price Range Range Three [Member] \| Maximum [Member]
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Weighted Average Option Price per Share	33.41
Exercise Price Range Range Four [Member] \| Minimum [Member]
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Weighted Average Option Price per Share	6.91
Exercise Price Range Range Four [Member] \| Maximum [Member]
Summary of options outstanding segregated by ranges of exercise prices
Total Outstanding Options, Weighted Average Option Price per Share	$ 33.41