CONSOLIDATED ENTITIES - Theravance Respiratory Company, LLC (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents	$ 201,525	$ 246,487
Receivables from collaborative arrangements	110,711	93,931
Prepaid expenses and other current assets	1,437	1,640
Equity and long-term investments	483,845	438,258
Total assets	926,395	999,570
Liabilities and Stockholders Equity
Current liabilities	5,807	6,110
Total liabilities and stockholders' equity	926,395	999,570
Income statements
Total net revenue	391,866	336,794	$ 261,016
Operating expenses	16,763	15,671	14,656
Income from operations	375,103	321,123	246,360
Other income, net	(3,626)	(348)	(345)
Changes in fair values of equity and long-term investments	91,030	50,277	0
Net income	368,837	293,814	190,993
Royalty revenue from a related party
Income statements
Total net revenue	391,866	326,794	261,016
Revenue from collaborative arrangements
Income statements
Total net revenue	0	10,000	0
Theravance Respiratory Company, LLC
Assets
Receivables from collaborative arrangements	42,492	24,946
Prepaid expenses and other current assets	71	0
Equity and long-term investments	37,695	16,959
Total assets	130,971	79,986
Liabilities and Stockholders Equity
LLC members' equity	130,719	79,478
Total liabilities and stockholders' equity	130,971	79,986
Income statements
Total net revenue	126,688	83,089	42,790
Operating expenses	3,956	2,612	3,380
Income from operations	122,732	80,477	39,410
Other income, net	0	38	243
Changes in fair values of equity and long-term investments	(1,541)	1,147	0
Net income	121,191	81,662	39,653
Theravance Respiratory Company, LLC | Royalty revenue from a related party
Income statements
Total net revenue		73,089	42,790
Theravance Respiratory Company, LLC | Revenue from collaborative arrangements
Income statements
Total net revenue	$ 0	$ 10,000	$ 0