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.

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-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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Unrecognized cost of unvested options awarded to employees as compensation.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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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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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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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Percentage of vesting of share-based compensation awards.

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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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Stock Based Compensation - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation	$ 567	$ 323	$ 1,053	$ 1,025
2014 Omnibus Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares approved for issuance					1,200,000
2014 Omnibus Incentive Plan \| Restricted Stock Awards (RSAs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized compensation cost	1,889		$ 1,889
Weighted-average period to recognize cost			3 years 5 months 15 days
2014 Omnibus Incentive Plan \| Restricted Stock Awards (RSAs) \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation, award vesting period			3 years
2014 Omnibus Incentive Plan \| Restricted Stock Awards (RSAs) \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation, award vesting period			4 years
2014 Omnibus Incentive Plan \| Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized compensation cost	2,235		$ 2,235
Weighted-average period to recognize cost			4 years 10 months 2 days
Stock based compensation, award vesting period			5 years
2014 Omnibus Incentive Plan \| Performance Stock Units (PSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized compensation cost	2,224		$ 2,224
Weighted-average period to recognize cost			4 years 10 months 2 days
Stock based compensation, award vesting period			5 years
2014 Omnibus Incentive Plan \| Performance Stock Units (PSUs) \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation, award vesting percentage			0.00%
2014 Omnibus Incentive Plan \| Performance Stock Units (PSUs) \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation, award vesting percentage			175.00%
2014 Omnibus Incentive Plan \| Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average period to recognize cost			3 years 4 months 2 days
Stock based compensation, award vesting period			4 years
Employees stock options contractual terms			10 years
Total unrecognized compensation cost	$ 954		$ 954