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.

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)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section F

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- Definition

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
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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.

+ References

No definition available.

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- Definition

Percentage of vesting of share-based compensation awards.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Stock Based Compensation - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 1,100,000	$ 1,800,000	$ 2,561,000	$ 3,157,000
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)			259,797
Restricted stock \| Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)			218,733
Restricted stock \| Non Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)			41,064
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)			163,269
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 \| Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)			55,464
Two 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			50.00%
Two 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			50.00%
Performance Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)			566,092
Compensation expense recognized			$ 0
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%