Business Divestiture - Narrative (Details) $ in Thousands, R in Millions			3 Months Ended	9 Months Ended
	Oct. 29, 2021 USD ($)	Jul. 30, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2021 USD ($)		Sep. 30, 2020 USD ($)	Feb. 24, 2021 USD ($)	Feb. 24, 2021 ZAR (R)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Initial cash proceeds		$ 36,566
Net cash proceeds		31,500		$ 31,526	[1]	$ 0
Cash sold as part of sale		5,100		5,000
Ctrack South Africa | Disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Initial cash proceeds		36,600
Post-closing working capital adjustments		$ 2,584
Receivable related to working capital adjustments			$ 400	400
Net gain on sale			5,262	5,262
Disposal Transaction Expenses			$ 2,200	$ 2,200
Ctrack South Africa | Disposed of by sale | Subsequent event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Post-closing working capital adjustments received	$ 2,200
Convergence Partners | Ctrack South Africa
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase Agreement, transaction price per agreement							$ 36,600	R 528.9
Definitive Agreement, Ten Percent Of Transaction Price Per Agreement Placed In Escrow, Amount							$ 3,500

[1] Amounts for the nine months ended September 30, 2021 are net of $5.0 million of cash sold as part of the sale of Ctrack South Africa (see Note 4. Business Divestiture).