Series A Preferred Stock (Details) $ / shares in Units, $ in Thousands			9 Months Ended	12 Months Ended
	Oct. 15, 2015 shares	Aug. 17, 2015 USD ($) shares	Sep. 30, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares
Temporary Equity [Line Items]
Preferred shares, par value (in dollars per share) | $ / shares			$ 0.001	$ 0.001
Change in Series A Preferred Stock
Balance at the beginning of the period (in shares) | shares			64,809
Balance at the end of the period (in shares) | shares			2,576	64,809
Balance at the beginning of the period | $			$ 58,250
Balance at the end of the period | $			$ 2,304	$ 58,250
Series A Preferred Stock
Temporary Equity [Line Items]
Preferred shares, par value (in dollars per share) | $ / shares			$ 0.001	$ 0.001
Preferred shares, liquidation preference per share | $ / shares			$ 1,000	$ 1,000
Temporary Equity liquidation preference dividend, percent			20	20
Change in Series A Preferred Stock
Balance at the beginning of the period (in shares) | shares			64,809
Less redemptions of preferred stock (in shares) | shares	(2,576)	(62,140)	(62,233)
Balance at the end of the period (in shares) | shares			2,576	64,809
Balance at the beginning of the period | $			$ 58,250
Less redemptions of preferred stock | $		$ (55,946)	(55,946)
Balance at the end of the period | $			$ 2,304	$ 58,250