Business Combinations - Summary of Unaudited Pro Forma Results of Operations (Details) - NC4 Inc. and NC4 Public Sector LLC - USD ($) $ / shares in Units, $ in Thousands	2 Months Ended	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2019
Business Acquisition [Line Items]
Revenue, pro forma - From the acquisition date	$ 2,040
Revenue, pro forma		$ 54,352	$ 154,719
Net loss, pro forma - From the acquisition date	$ (1,465)
Net loss, pro forma		$ (13,387)	$ (45,875)
Basic and Diluted Loss Per Share, pro forma		$ (0.40)	$ (1.38)

Business acquisition pro forma earnings (loss) per share basic and diluted

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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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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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-Subparagraph (h)(2)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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