Acquisitions - Additional Information (Detail) $ / shares in Units, € in Thousands, $ in Thousands						12 Months Ended
	May 26, 2016 USD ($)	Oct. 06, 2015 USD ($)	Jan. 16, 2015 USD ($)	Jan. 02, 2015 USD ($)	Mar. 11, 2014 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) Customer	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 EUR (€) Customer	Jan. 01, 2015 USD ($)
Business Acquisition [Line Items]
Estimated Useful life (years)						9 years 10 months 24 days
Portion of contingent consideration in accrued expenses						$ 1,174
Customer Lists [Member]
Business Acquisition [Line Items]
Estimated Useful life (years)						10 years 3 months 18 days
Skygistics Ltd. [Member]
Business Acquisition [Line Items]
Acquisition effective date						May 26, 2016
Arrangement Agreement date						Apr. 11, 2016
Cash consideration paid	$ 3,835
Aggregate consideration payable in cash and common stock	4,349
Business acquisition contingent consideration at fair value	514
Intangible assets						$ 1,545
Portion of contingent consideration in accrued expenses						519
Contingent consideration accretion recorded in Selling, general and administrative expenses						5
Skygistics Ltd. [Member] | Indemnification Asset [Member]
Business Acquisition [Line Items]
Amount deposited in escrow to fund any indemnification obligations						$ 757
Skygistics Ltd. [Member] | Telematics And Enterprise Customers [Member]
Business Acquisition [Line Items]
Number of customers | Customer						250			250
Skygistics Ltd. [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Discount rate to reflect risk characteristics of intangible assets						19.00%
Intangible assets						$ 1,545
Estimated Useful life (years)						13 years
Skygistics Ltd. [Member] | Maximum [Member]
Business Acquisition [Line Items]
Contingent consideration payable	$ 954
WAM Technologies, LLC [Member]
Business Acquisition [Line Items]
Acquisition effective date						Oct. 06, 2015
Cash consideration paid		$ 8,689
Aggregate consideration payable in cash and common stock						$ 8,689
Intangible assets						4,810
Amount deposited in escrow to fund any indemnification obligations		1,100
Working capital settlement		$ 189
WAM Technologies, LLC [Member] | Indemnification Asset [Member]
Business Acquisition [Line Items]
Amount deposited in escrow to fund any indemnification obligations						$ 1,100
WAM Technologies, LLC [Member] | Customer Lists, Technology and Trademarks [Member]
Business Acquisition [Line Items]
Discount rate to reflect risk characteristics of intangible assets						26.00%
InSync Software, Inc [Member]
Business Acquisition [Line Items]
Acquisition effective date						Jan. 16, 2015
Cash consideration paid			$ 11,642
Aggregate consideration payable in cash and common stock			10,850
Business acquisition contingent consideration at fair value			542
Intangible assets						$ 5,788
Amount deposited in escrow to fund any indemnification obligations			1,320
Contingent consideration accretion recorded in Selling, general and administrative expenses							$ 542
Working capital settlement			$ 250
Outstanding equity percentage			100.00%
Increase (decrease) in goodwill							134
InSync Software, Inc [Member] | Indemnification Asset [Member]
Business Acquisition [Line Items]
Amount deposited in escrow to fund any indemnification obligations						1,320
InSync Software, Inc [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Intangible assets						$ 5,056
Estimated Useful life (years)						14 years
InSync Software, Inc [Member] | Customer Lists, Technology and Trademarks [Member]
Business Acquisition [Line Items]
Discount rate to reflect risk characteristics of intangible assets						15.00%
InSync Software, Inc [Member] | Maximum [Member]
Business Acquisition [Line Items]
Contingent consideration payable			$ 5,000
SkyWave Mobile Communications Inc. [Member]
Business Acquisition [Line Items]
Acquisition effective date						Jan. 01, 2015
Arrangement Agreement date						Nov. 01, 2014
Cash consideration paid				$ 130,203
Aggregate consideration payable in cash and common stock				122,373			122,373
Intangible assets						$ 67,214
Amount deposited in escrow to fund any indemnification obligations										$ 10,600
Working capital settlement				$ 300
Outstanding equity percentage										100.00%
Increase (decrease) in goodwill							(969)
Business acquisition, settled by promissory note										$ 7,500
SkyWave Mobile Communications Inc. [Member] | Indemnification Asset [Member]
Business Acquisition [Line Items]
Amount deposited in escrow to fund any indemnification obligations										9,750
Pre-closing tax amount deposited in escrow account										850
Working capital amount deposited in escrow account										$ 503
Tax liability settlements							330
SkyWave Mobile Communications Inc. [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Intangible assets						$ 59,371
Estimated Useful life (years)						10 years
SkyWave Mobile Communications Inc. [Member] | Customer Lists, Technology and Trademarks [Member]
Business Acquisition [Line Items]
Discount rate to reflect risk characteristics of intangible assets						23.00%
Euroscan Holding B.V. [Member]
Business Acquisition [Line Items]
Acquisition effective date						Mar. 11, 2014
Cash consideration paid					$ 29,163
Intangible assets						$ 17,400
Portion of contingent consideration in accrued expenses						655
Contingent consideration accretion recorded in Selling, general and administrative expenses						69	307	$ 439
Outstanding equity percentage					100.00%
Number of common stock shares issued for consideration | shares					291,230
Common stock issued, per share | $ / shares					$ 7.70
Payment on achievement of milestone							992
Portion of contingent consideration in other non-current liabilities							1,719
Reduction in fair value of earn-outs amounts						617	$ 1,303	$ 1,595
Increase in fair value of earn-outs amounts						182
Escrow amount to be released | €									€ 250
Euroscan Holding B.V. [Member] | Indemnification Asset [Member]
Business Acquisition [Line Items]
Amount deposited in escrow to fund any indemnification obligations | €									€ 1,000
Euroscan Holding B.V. [Member] | Customer Lists [Member]
Business Acquisition [Line Items]
Intangible assets						$ 14,400
Estimated Useful life (years)						12 years
Euroscan Holding B.V. [Member] | Customer Lists, Technology and Trademarks [Member]
Business Acquisition [Line Items]
Discount rate to reflect risk characteristics of intangible assets						17.50%
Euroscan Holding B.V. [Member] | Maximum [Member]
Business Acquisition [Line Items]
Contingent consideration payable					$ 6,547
MWL Management B.V. and R.Q. Management B.V [Member]
Business Acquisition [Line Items]
Total consideration paid in cash common stock upon achievement of operational milestone						$ 694