Stockholders’ Equity - Stock Split and Employee Notes Receivable (Details) $ in Thousands		12 Months Ended
	Oct. 15, 2015 shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2013 USD ($)
Class of Stock [Line Items]
Common shares, authorized shares (in shares) | shares	100,000,000	100,000,000	100,000,000
Employee Notes Receivable
Notes receivable interest rate (as a percent)		5.00%
Proceeds from employee note receivable		$ 108	$ 19	$ 10
Notes receivable from employees		$ 0	$ 108
Common Stock
Class of Stock [Line Items]
Stock split	0.0455