Deferred Revenue (Details) $ in Millions	12 Months Ended
Dec. 31, 2016 USD ($)
Enhanced View SLA \| National Geospatial-Intelligence Agency (NGA)
Deferred revenue
Amount of deferred revenue arising from performance penalties	$ 0.0

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.

No definition available.

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