CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 406,328	$ 134,272	$ 59,536
Unrealized income (loss) on marketable securities, net	15	(19)	3
Comprehensive income	406,343	134,253	59,539
Comprehensive income attributable to noncontrolling interest	11,272	129	0
Comprehensive income attributable to Innoviva stockholders	$ 395,071	$ 134,124	$ 59,539