Shareholder's Equity and Stock-Based Compensation - Schedule of Stock Option Activity (Details)	3 Months Ended
Mar. 31, 2018 $ / shares shares
Equity [Abstract]
Number of Stock Options, Outstanding - beginning of period \| shares	2,782,868
Number of Stock Options, Granted \| shares	406,500
Number of Stock Options, Exercised \| shares	(38,161)
Number of Stock Options, Forfeited/Expired \| shares	(62,361)
Number of Stock Options, Outstanding - end of period \| shares	3,088,846
Number of Stock Options, Exercisable - end of period \| shares	957,504
Weighted Average Exercise Price, Outstanding - beginning of Period \| $ / shares	$ 20.73
Weighted Average Exercise Price, Granted \| $ / shares	32.05
Weighted Average Exercise Price, Exercised \| $ / shares	14.83
Weighted Average Exercise Price, Forfeited/Expired \| $ / shares	19.62
Weighted Average Exercise Price, Outstanding - end of period \| $ / shares	22.32
Weighted Average Exercise Price, Exercisable - end of period \| $ / shares	$ 15.54

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently 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 (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ 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)(iv)(3)-(4)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Weighted average price of options that were either forfeited or expired.

+ 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)(iv)(3)-(4)
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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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- Definition

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

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- Definition

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

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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No definition available.

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

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