v3.20.4

Summary of significant accounting policies - Goodwill (Details) $ in Thousands	2 Months Ended	10 Months Ended	12 Months Ended		34 Months Ended
	Dec. 31, 2020 USD ($) item	Oct. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Oct. 30, 2020 item	Oct. 31, 2020 USD ($)	Dec. 31, 2018 USD ($)
Goodwill
Number of reporting unit | item	5				1
Impairment loss	$ 0	$ 0	$ 0	$ 0
Goodwill	$ 58,579		$ 58,579	$ 58,579		$ 58,579	$ 59,640
Carrier services
Goodwill
Goodwill						37,740
Military
Goodwill
Goodwill						15,151
Mulitifamily
Goodwill
Goodwill						3,062
Legacy
Goodwill
Goodwill						1,829
Private networks and emerging technologies
Goodwill
Goodwill						$ 797

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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-URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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