v3.20.2

Revenue Recognition - Revenue Performance Obligation (Details) $ in Millions | Sep. 30, 2020 USD ($)
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Revenue from Contract with Customer [Abstract] |
Remaining performance obligation | $ 677.9
Remaining performance obligation, as a percentage | 38.90%

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- Definition Revenue, Remaining Performance Obligation, Recognition In Next Rolling Twelve Months, Percentage + References No definition available. + Details
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Namespace Prefix: | sats_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant