Advances from Financing Companies (Details) $ in Thousands	Mar. 31, 2021 USD ($)
2021	$ 10,787
2022	9,624
2023	3,502
2024	185
Total	$ 24,098
Minimum
Advances from financing companies, interest rate (as a percent)	3.79%
Maximum
Advances from financing companies, interest rate (as a percent)	8.49%

- Definition

In aggregate, the amount of customer lease payments due, reducing the Company's outstanding advances from financing companies balance.

+ References

No definition available.

+ Details

Name:	tdoc_AdvancesFromFinancingCompaniesCustomerPaymentsDue
Namespace Prefix:	tdoc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of customer lease payments due in current fiscal year, reducing the Company's outstanding advances from financing companies balance.

+ References

No definition available.

+ Details

Name:	tdoc_AdvancesFromFinancingCompaniesCustomerPaymentsDueCurrent
Namespace Prefix:	tdoc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of customer lease payments due in next fiscal year following current fiscal year, reducing the Company's outstanding advances from financing companies balance.

+ References

No definition available.

+ Details

Name:	tdoc_AdvancesFromFinancingCompaniesCustomerPaymentsDueYearOne
Namespace Prefix:	tdoc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of customer lease payments due in third fiscal year following current fiscal year, reducing the Company's outstanding advances from financing companies balance.

+ References

No definition available.

+ Details

Name:	tdoc_AdvancesFromFinancingCompaniesCustomerPaymentsDueYearThree
Namespace Prefix:	tdoc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of customer lease payments due in second fiscal year following current fiscal year, reducing the Company's outstanding advances from financing companies balance.

+ References

No definition available.

+ Details

Name:	tdoc_AdvancesFromFinancingCompaniesCustomerPaymentsDueYearTwo
Namespace Prefix:	tdoc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The interest rate applicable to the outstanding advances from financing companies as of the end of the reporting period.

+ References

No definition available.

+ Details

Name:	tdoc_AdvancesFromFinancingCompaniesInterestRate
Namespace Prefix:	tdoc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: