Capitalized internal costs.

No definition available.

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- Definition

Decrease in satellite network and other equipment net.

+ References

No definition available.

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Depreciation and amortization expense percentage related to cost of product sales.

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No definition available.

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Depreciation and amortization expense percentage related To cost of services.

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No definition available.

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- Definition

Impairment charges-satellite network and associated launch services.

+ References

No definition available.

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- Definition

Number of satellite network loss of communication.

+ References

No definition available.

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- Definition

Amount of increase (decrease) in accumulated depreciation, depletion and amortization of property, plant and equipment.

+ References

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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- Definition

Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value.

+ References

No definition available.

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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- 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.

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Satellite Network and Other Equipment - Additional Information (Detail) $ in Thousands	1 Months Ended		3 Months Ended			6 Months Ended		9 Months Ended	12 Months Ended
	Jun. 30, 2017 USD ($) OG2Satellite	Aug. 31, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Property Plant And Equipment [Line Items]
Aggregate carrying value of satellite	$ 299,027		$ 299,027			$ 299,027			$ 286,434
Products and Services [Member]
Property Plant And Equipment [Line Items]
Company capitalized internal costs attributable to the design, development and enhancements of the company's products and services			3,374	$ 2,544		6,610	$ 4,732
Fixed Assets [Member]
Property Plant And Equipment [Line Items]
Depreciation expense			$ 8,710	$ 8,483		$ 17,040	$ 14,380
Depreciation and amortization expense percentage related to cost of services			62.00%	68.00%		64.00%	67.00%
Depreciation and amortization expense percentage related to cost of product sales			8.00%	13.00%		8.00%	12.00%
Internal-use Software [Member]
Property Plant And Equipment [Line Items]
Depreciation expense			$ 1,485	$ 794		$ 2,835	$ 1,645
Satellite Network [Member]
Property Plant And Equipment [Line Items]
Impairment loss on asset					$ 466
Aggregate carrying value of satellite	$ 232,928		232,928			232,928			231,782
AIS Satellites [Member]
Property Plant And Equipment [Line Items]
Decrease in satellite network and other equipment, net					2,374
Accumulated depreciation on equipment					$ 1,908
OG2 Satellite [Member]
Property Plant And Equipment [Line Items]
Decrease in satellite network and other equipment, net								$ 13,474
Accumulated depreciation on equipment								$ 2,794
Non-cash impairment charge		$ 10,680
Number of satellite loss of communication \| OG2Satellite	3
Aggregate carrying value of satellite	$ 31,917		$ 31,917			$ 31,917
OG1 Plane D Satellites [Member]
Property Plant And Equipment [Line Items]
Decrease in satellite network and other equipment, net									137
Accumulated depreciation on equipment									$ 137