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Financial Statement Details - Rental Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Rental assets	$ 21,863	$ 18,176
Less—accumulated depreciation	(15,754)	(12,791)
Rental assets, net	$ 6,109	$ 5,385

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- Definition

Accumulated Depreciation, Rental Assets

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No definition available.

+ Details

Name:	insg_AccumulatedDepreciationRentalAssets
Namespace Prefix:	insg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Definition

Rental Assets, Gross

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No definition available.

+ Details

Name:	insg_RentalAssetsGross
Namespace Prefix:	insg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- Definition

Rental Assets, Net

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No definition available.

+ Details

Name:	insg_RentalAssetsNet
Namespace Prefix:	insg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- References

No definition available.

+ Details

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