Business Combinations - Summary of Fair Value Estimates of Identifiable Intangibles and Weighted-Average Useful Lives (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended
Feb. 28, 2013 CSG	Aug. 30, 2013 Multiband	Feb. 28, 2013 Customer Backlog CSG	Aug. 30, 2013 Customer Backlog Multiband	Feb. 28, 2013 Customer Relationships CSG	Aug. 30, 2013 Customer Relationships Multiband	Feb. 28, 2013 Noncompete Agreements CSG	Feb. 28, 2013 Trade Names CSG	Aug. 30, 2013 Trade Names Multiband	Aug. 30, 2013 Customer Contracts Multiband	Aug. 30, 2013 Customer Contracts Multiband Minimum	Aug. 30, 2013 Customer Contracts Multiband Maximum	Aug. 30, 2013 Software Multiband	Aug. 30, 2013 Right of Entry Contracts Multiband
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets, Estimated Useful Life (Years)			6 months	6 months	12 years	12 years	5 years	1 year 3 months	5 years		9 years	10 years	4 years 9 months 18 days	2 years
Intangible assets, Fair Value	$ 11,720	$ 33,640	$ 1,400	$ 70	$ 6,610	$ 1,100	$ 3,150	$ 560	$ 3,700	$ 24,900			$ 3,810	$ 60

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

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