Commitment and Contingencies - Unconditional Purchase Obligations (Details) $ in Thousands	Mar. 31, 2020 USD ($)
Recorded Unconditional Purchase Obligation [Line Items]
2020 (excluding the three months ended March 31, 2020)	$ 111
2021	276
2022	7,188
2023	5,529
2024	6,635
Thereafter	7,741
Total	27,480
Connectivity Agreement
Recorded Unconditional Purchase Obligation [Line Items]
2020 (excluding the three months ended March 31, 2020)	111
2021	276
2022	0
2023	0
2024	0
Thereafter	0
Total	387
Credit Voucher Agreement
Recorded Unconditional Purchase Obligation [Line Items]
2020 (excluding the three months ended March 31, 2020)	0
2021	0
2022	7,188
2023	5,529
2024	6,635
Thereafter	7,741
Total	$ 27,093

Recorded Unconditional Purchase Obligation, To Be Paid, After Year Four

No definition available.

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Namespace Prefix:	teum_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of the recorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121559207&loc=d3e25383-109308

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of recorded unconditional purchase obligation to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Period Type:	instant

- Definition

Amount of recorded unconditional purchase obligation to be paid in remainder of current fiscal year.

+ References

No definition available.

+ Details

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- Definition

Amount of recorded unconditional purchase obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Period Type:	instant

- Definition

Amount of recorded unconditional purchase obligation to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of recorded unconditional purchase obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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