CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ 4,522	$ (38,321)	$ (14,057)
Other comprehensive income:
Foreign currency translation adjustments	542	155	42
Unrealized gain (loss) on short-term investments, net of tax	55	(148)
Other comprehensive income	597	7	42
Total comprehensive income (loss)	5,119	(38,314)	(14,015)
Comprehensive loss attributable to noncontrolling interest		(1,080)	(1,931)
Comprehensive income (loss) attributable to Glaukos Corporation	$ 5,119	$ (37,234)	$ (12,084)