Business Combinations - Unaudited Pro Forma Summary of Financial Results (Details) - USD ($) $ / shares in Units, $ in Thousands	8 Months Ended	12 Months Ended
Dec. 31, 2015	Dec. 31, 2016
Tower Cloud
Business Acquisition [Line Items]
Pro forma revenue	$ 505,764	$ 798,054
Pro forma net (loss) income	$ 17,609	$ (3,581)
Pro forma net (loss) income per share	$ 0.12	$ (0.02)
PEG Bandwidth, LLC
Business Acquisition [Line Items]
Pro forma revenue	$ 529,911	$ 797,637
Pro forma net (loss) income	$ 19,809	$ 6,264
Pro forma net (loss) income per share	$ 0.13	$ 0.04

Business acquisitions pro forma net income (loss) per share.

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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/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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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

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