Stock Based Compensation - Narrative (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 900	$ 900	$ 2,772	$ 2,207
Performance Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)	24,812		312,551
Stock awards, vesting percentage			33.33%
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)	31,013		79,575
Restricted stock | Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)	31,013		57,147
Number of award type not vesting on first and second anniversary of grant date			2
Restricted stock | Non Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of stock (in shares)	0		22,428
Stock awards, vesting percentage			25.00%
First and Second Anniversary of Grant Date | Restricted stock | Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, vesting percentage			50.00%
Second Anniversary of Grant Date | Restricted stock | Other Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of award type			2
Stock awards, vesting percentage			100.00%