Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)	3 Months Ended	4 Months Ended	5 Months Ended	9 Months Ended
	Sep. 30, 2014	Apr. 23, 2015	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Summary Of Significant Accounting Policies [Line Items]
Gain (loss) on disposition of property			$ 0
Provision for doubtful accounts			0
Current liabilities for uncertain income tax positions			$ 0
Federal corporate level tax rate			35.00%
Specified Period For Federal Corporate Tax			10 years
Principal amount of notes and other debt			$ 3,644,650,000
Consumer CLEC Business
Summary Of Significant Accounting Policies [Line Items]
Provision for doubtful accounts	$ 118,000	$ 111,000		$ 301,000
Unbilled receivables					$ 94,000
Distribution Systems
Summary Of Significant Accounting Policies [Line Items]
Gain (loss) on disposition of property			0
Prices with Other Observable Inputs (Level 2)
Summary Of Significant Accounting Policies [Line Items]
Notes and other debt, fair value			$ 3,320,000,000
Minimum
Summary Of Significant Accounting Policies [Line Items]
Percentage of REIT taxable income distributed			90.00%
Real Estate Investments
Summary Of Significant Accounting Policies [Line Items]
Tenant funded capital improvements			$ 41,100,000