Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.

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Stockholders' Equity and Stock Based Compensation - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
	May. 20, 2015	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of common stock			$ 8,807	$ 615
Repurchase authorization		$ 20,000	$ 20,000
Increase (decrease) in additional paid in capital	$ (600)
Increase in accumulated deficit	$ 1,000
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock repurchased and retired (shares)	96,948	0	514,000
Common stock repurchased and retired	$ 1,600