Share-based Compensation Arrangement by Share-based Payment Award, Options, Assumed in Period, Gross

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value [Roll Forward]

+ References

No definition available.

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- Definition

Share-based Compensation Arrangements by Share-based Payment Award, Options, Assumed in Period, Weighted Average Exercise Price

+ References

No definition available.

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- References

No definition available.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into 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
-Subparagraph (d)(2)
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- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

+ References

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- Definition

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.

+ References

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-Publisher FASB
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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

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

+ References

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- Definition

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

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-Publisher FASB
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- References

No definition available.

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- Definition

Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

+ References

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- Definition

Number of fully vested and expected to vest exercisable options that may be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

+ References

No definition available.

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- 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
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Weighted average remaining contractual term for fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

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

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-Name Accounting Standards Codification
-Topic 210
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Stock-Based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Mar. 08, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Number of Options
Beginning balance (in shares)		3,547,528
Granted (in shares)		252,100	653,900	540,548
Exercised (in shares)		(1,011,174)
Forfeited (in shares)		(97,415)
Expired (in shares)		(4,063)
Ending balance (in shares)		2,686,976	3,547,528
Weighted Average Exercise Price Per Share
Beginning balance (USD per share)		$ 6.91
Granted (USD per share)		31.69
Exercised (USD per share)		2.55
Forfeited (USD per share)		12.53
Expired (USD per share)		11.99
Ending balance (USD per share)		$ 10.67	$ 6.91
Weighted Average Remaining Contractual Life and Aggregate Intrinsic Value
Outstanding, weighted average remaining contractual life (in years)		6 years 4 months 24 days	6 years 4 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value [Roll Forward]
Outstanding, beginning balance, aggregate intrinsic value		$ 74,267
Aggregate intrinsic value of stock options exercised during period		34,999	$ 14,100	$ 3,300
Outstanding, ending balance, aggregate intrinsic value		$ 72,823	$ 74,267
Vested and expected to vest (in shares)		2,700,257
Vested and expected to vest, weighted average exercise (USD per share)		$ 10.64
Vested and expected to vest, weighted average remaining contractual life (in years)		6 years 4 months 24 days
Vested and expected to vest, aggregate intrinsic value		$ 73,258
Exercisable (in shares)		1,733,849
Exercisable, weighted average exercise (USD per share)		$ 6.38
Exercisable, weighted average remaining contractual life (in years)		5 years 7 months 6 days
Exercisable, aggregate intrinsic value		$ 54,398
Connect
Number of Options
Beginning balance (in shares)		0
Options assumed in from Connect (in shares)	70,406	70,406
Exercised (in shares)		(7,232)
Forfeited (in shares)		(21,514)
Expired (in shares)		(21)
Ending balance (in shares)		41,639	0
Weighted Average Exercise Price Per Share
Beginning balance (USD per share)		$ 0.00
Options assumed from Connect (USD per share)		5.48
Exercised (USD per share)		5.57
Forfeited (USD per share)		4.70
Expired (USD per share)		4.55
Ending balance (USD per share)		$ 5.88	$ 0.00
Weighted Average Remaining Contractual Life and Aggregate Intrinsic Value
Outstanding, weighted average remaining contractual life (in years)		7 years 2 months 12 days	0 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value [Roll Forward]
Outstanding, beginning balance, aggregate intrinsic value		$ 0
Aggregate intrinsic value of stock options exercised during period		252
Outstanding, ending balance, aggregate intrinsic value		$ 1,327	$ 0
Vested and expected to vest (in shares)		41,639
Vested and expected to vest, weighted average exercise (USD per share)		$ 5.88
Vested and expected to vest, weighted average remaining contractual life (in years)		7 years 2 months 12 days
Vested and expected to vest, aggregate intrinsic value		$ 1,327
Exercisable (in shares)		18,973
Exercisable, weighted average exercise (USD per share)		$ 5.24
Exercisable, weighted average remaining contractual life (in years)		6 years 10 months 24 days
Exercisable, aggregate intrinsic value		$ 617