Consolidated Statement of Stockholders’ Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Total
Increase (decrease) in equity
Adoption of ASU 2016-01 | Accounting Standards Update 2016-01			$ (40)	$ 40
Balance at the beginning of the period at Dec. 31, 2017	$ 11	$ 158,738	(55,617)	$ (40)	$ 103,092
Balance at the beginning of the period (in shares) at Dec. 31, 2017	106,275				106,300
Increase (decrease) in equity
Share-based compensation		12,440			$ 12,440
Restricted stock vesting	123
Net loss			(16,200)		(16,200)
Balance at the end of the period at Mar. 31, 2018	$ 11	$ 171,178	$ (71,857)		$ 99,332
Balance at the end of the period (in shares) at Mar. 31, 2018	106,398				106,400