CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 82,046	$ 229,347	$ 118,191	$ 288,576
Comprehensive income	82,046	229,347	118,191	288,576
Comprehensive income (loss) attributable to noncontrolling interests	0	(36,176)	0	6,341
Comprehensive income attributable to Innoviva stockholders	$ 82,046	$ 265,523	$ 118,191	$ 282,235