Amount of increase to additional paid-in capital (APIC) from recognition of equity-based compensation.

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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

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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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

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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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No definition available.

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Percentage of vesting of share-based compensation awards.

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Stock Based Compensation - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	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			$ 6,260
Stock based compensation expense		$ 1,500	6,260	$ 4,087
Allocated Share-based Compensation Expense			$ 1,500
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)	6,434		259,677
Restricted stock \| Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)			259,677
Restricted stock \| Non Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)			35,275
Restricted stock \| Share-based Compensation Award, Tranche One \| Non Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			25.00%
Restricted stock \| Share-based Compensation Award, Tranche Two \| Non Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			25.00%
Restricted stock \| Share-based Compensation Award, Tranche Three \| Non Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			25.00%
Restricted stock \| Share-based Compensation Award, Tranche Four \| Non Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			25.00%
Three Year Vesting Restricted Stock \| Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)			172,857
Three Year Vesting Restricted Stock \| Share-based Compensation Award, Tranche One \| Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			33.33%
Three Year Vesting Restricted Stock \| Share-based Compensation Award, Tranche Two \| Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			33.33%
Three Year Vesting Restricted Stock \| Share-based Compensation Award, Tranche Three \| Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			33.33%
Two Year Vesting Restricted Stock, March Schedule \| Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)			45,111
Two Year Vesting Restricted Stock, March Schedule \| Share-based Compensation Award, Tranche One \| Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			50.00%
Two Year Vesting Restricted Stock, March Schedule \| Share-based Compensation Award, Tranche Two \| Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			50.00%
Two Year Vesting Restricted Stock, July Schedule [Member] \| Share-based Compensation Award, Tranche One \| Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			50.00%
Performance Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)			553,909
Performance Based Restricted Stock \| Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			33.33%
Performance Based Restricted Stock \| Share-based Compensation Award, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			33.33%
Performance Based Restricted Stock \| Share-based Compensation Award, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			33.33%
Additional Paid-in Capital [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 3,100		$ 6,260