CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ 1,159	$ (2,057)	$ 4,388	$ (36,031)
Other comprehensive (loss) gain:
Unrealized (loss) gain on short-term investments, net of income tax expense of $0.1 million for the three months and the nine months ended September 30, 2016	(175)		151
Foreign currency translation adjustments	81	12	(353)	51
Other comprehensive (loss) gain	(94)	12	(202)	51
Total comprehensive income (loss)	1,065	(2,045)	4,186	(35,980)
Comprehensive loss attributable to noncontrolling interest				(1,080)
Comprehensive income (loss) attributable to Glaukos Corporation	$ 1,065	$ (2,045)	$ 4,186	$ (34,900)