Excess tax benefit from share based compensation.

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- Definition

Represents the award target range.

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- Definition

Share based compensation arrangement by share based payment award options exchanged in period.

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No definition available.

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- Definition

Share-based compensation arrangement by share-based payment award, options, yearly installment exercisable percentage.

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No definition available.

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- Definition

Represents the performance period for measurement of achievement of differing levels of performance for a performance based award of the entity.

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No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
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- Definition

Unrecognized cost of unvested share-based compensation awards.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

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- Definition

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
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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.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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

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No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of options vested.

+ References

No definition available.

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Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	3 Months Ended		9 Months Ended
	May 01, 2017	Jan. 27, 2017	Mar. 31, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense						$ 4,454	$ 2,749
Reduction in income tax expense related to stock based compensation				$ 200	$ 100	$ 800	800
Non-qualified stock options, exchanged	1,351,168					1,351,168
Non-qualified stock options yearly installments exercisable, percentage	20.00%
Non-qualified stock options, weighted average fair value per share	$ 9.90
Unrecognized compensation cost for unvested options				300		$ 300
Ex Executive Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Severance costs			$ 1,400
Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period						3 years
Performance Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted (in shares)						100,829
RSU and Performance Awards \| General and Administrative Expense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense				1,400	$ 700	$ 4,500	$ 2,700
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted (in shares)						387,204
Fair value, per unit		$ 15.50
Unrecognized compensation expense				6,400		$ 6,400
Recognition period of unrecognized compensation cost						1 year 22 days
Unrecognized compensation cost for unvested restricted stock				$ 100		$ 100
Restricted Stock Units (RSUs) \| Non Employee Board
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted (in shares)		46,282				42,161
Restricted Stock Units (RSUs) \| Ex Executive Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense			$ 500
Vested			167,511
Restricted Stock Units (RSUs) \| Executive Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted (in shares)		298,761
Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance period						1 year
Minimum \| Plan 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Payout range as a percent of award target						0.00%
Minimum \| Performance Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period						1 year
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance period						2 years
Non-qualified stock options, term	10 years
Maximum \| Plan 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Payout range as a percent of award target						200.00%
Maximum \| Performance Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period						2 years