Organization and Summary of Significant Accounting Policies - Research and Development Expenses (Details)	12 Months Ended
Dec. 31, 2018
Organization and Summary of Significant Accounting Policies
Change in estimate of accrued research as a percent of annual expense	1.00%

Change of estimated accrued research and development as a percent of annual expenses.

No definition available.

Name:	tbph_ChangeInEstimateOfAccruedResearchAsPercentOfAnnualExpense
Namespace Prefix:	tbph_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration