Revenue, Deferred Revenue, and Deferred Device and Contract Costs - Deferred Cost and Other Activity (Details) $ in Thousands	6 Months Ended
Jun. 30, 2022 USD ($)
Change in Deferred Costs And Other
Beginning balance	$ 28,553
Additions	29,161
Cost of revenue recognized	(18,630)
Ending Balance	$ 39,084

Amount of change in deferred device cost and other from cost of revenue recognized during the period.

No definition available.

Name:	tdoc_DeferredDeviceCostAndOtherCostOfRevenueRecognized
Namespace Prefix:	tdoc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration