CONSOLIDATED ENTITIES AND ACQUISITIONS - Theravance Respiratory Company, LLC (Details) - USD ($) $ in Thousands		12 Months Ended
	Jul. 20, 2022	Dec. 31, 2022		Dec. 31, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents		$ 291,049		$ 201,525
Prepaid expenses and other current assets		29,559		1,367
Equity and long-term investments		403,013		483,845
Total assets		1,231,497		926,395
Liabilities and Stockholders Equity
Current liabilities		134,968		5,807
Total liabilities and stockholders' equity		1,231,497		926,395
Income statements
Total net revenue		331,339		391,866	$ 336,794
Other income, net		(3,373)		(3,626)	(348)
Income tax expense, net		66,687		76,439	60,431
Net income		220,262		368,837	293,814
Royalty revenue
Income statements
Total net revenue		311,645		391,866	326,794
Revenue from collaborative arrangements
Income statements
Total net revenue		$ 0		0	10,000
Theravance Respiratory Company, LLC
CONSOLIDATED ENTITIES
Ownership interest in LLC		15.00%
Proceeds from sale of economic interest under Equity Purchase Agreement	$ 277,500
Contingent sales based milestone payment	50,000
Cash distribution	4,400
Total carrying value of investments	$ 39,400
Assets
Cash and cash equivalents				50,713
Receivables from collaborative arrangements				42,492
Prepaid expenses and other current assets				71
Equity and long-term investments				37,695
Total assets				130,971
Liabilities and Stockholders Equity
Current liabilities				252
LLC members' equity				130,719
Total liabilities and stockholders' equity				130,971
Income statements
Total net revenue		$ 72,029	[1]	126,688	83,089
Operating expenses		332	[1]	3,956	2,612
Income from operations		71,697	[1]	122,732	80,477
Other income, net		10	[1]	0	38
Realized loss		(39,386)	[1]	0	0
Income tax expense, net		1	[1]	0	0
Changes in fair values of other equity and long-term investments		(8,884)	[1]	(1,541)	1,147
Net income		23,438	[1]	121,191	81,662
Theravance Respiratory Company, LLC | Royalty revenue
Income statements
Total net revenue		72,029	[1]	126,688	73,089
Theravance Respiratory Company, LLC | Revenue from collaborative arrangements
Income statements
Total net revenue		0	[1]	0	$ 10,000
ISP Fund LP
Assets
Total assets		320,600		195,800
Income statements
Changes in fair values of other equity and long-term investments		$ 6,800		$ 10,500

[1] (1) The year ended December 31, 2022 represents the period from January 1, 2022 to July 20, 2022, the date of the sale of our ownership interest in TRC.