Annual purchase of stock per employee under a share based compensation plan.

No definition available.

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- Definition

Base wages subject to withholding towards stock purchase under a share based compensation plan.

+ References

No definition available.

+ Details

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- Definition

The percentage of base wages withheld for the purchase of stock under a share based compensation plan.

+ References

No definition available.

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- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Cash Contributions To ESPP

+ References

No definition available.

+ Details

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

+ References

+ Details

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- Definition

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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

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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585

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-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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Period Type:	duration

- Definition

Discount rate from fair value on offering date that participants pay for shares.

+ 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

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The highest quantity of shares an employee can purchase under the plan per period.

+ References

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Percentage of vesting of share-based compensation awards.

+ References

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Number of share options (or share units) exercised during the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30
-Article 5

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Stock Options, Employee Stock Purchase Plan and Restricted Stock - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	May 02, 2014
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual award vesting percentage	25.00%
Award vesting period	4 years
2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance (in Shares)			7,500,000
2014 and 2003 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of stock options (in Shares)	100,000
Proceeds from stock options exercised	$ 1,100,000
Tax benefit from compensation expense	$ 800,000
2003 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise of stock options (in Shares)		0
Employee Stock Purchase Plan ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance (in Shares)	2,000,000
Discount from market price at the beginning or end of the offering period	15.00%
Maximum annual purchase per employee under ESPP	$ 25,000
Maximum annual withholdings per employee for purchases under ESPP	$ 21,250
Maximum number of shares available for purchase per employee (in shares)	15,000
Contributions from plan participants through payroll deductions	$ 900,000
Minimum \| Employee Stock Purchase Plan ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of base wages withheld for purchase of stock	1.00%
Maximum \| Employee Stock Purchase Plan ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of base wages withheld for purchase of stock	15.00%