Stock Plans and Stock-Based Compensation - Schedule of Vested and Nonvested Stock Option Activity (Details) - $ / shares	Mar. 31, 2017	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Options outstanding, Vested	934,301	809,900
Weighted average exercise price, Vested	$ 7.43	$ 6.81
Options outstanding, Nonvested	1,171,810	1,074,525
Weighted average exercise price, Nonvested	$ 13.73	$ 12.44

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- Definition

As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the 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 (e)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Definition

As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

+ References

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- Definition

Number of non-vested options outstanding.

+ References

No definition available.

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- Definition

Weighted average grant-date fair value of non-vested options outstanding.

+ References

No definition available.

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