Significant Accounting Policies (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	9 Months Ended	12 Months Ended	0 Months Ended	9 Months Ended	0 Months Ended	9 Months Ended	0 Months Ended		1 Months Ended	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Jan. 25, 2013 Restricted Stock [Member]	Sep. 30, 2014 Restricted Stock [Member]	Apr. 17, 2013 Performance Shares [Member]	Sep. 30, 2014 Performance Shares [Member]	Apr. 17, 2013 Performance Shares [Member] Performance Criteria [Member]	Apr. 17, 2013 Performance Shares [Member] Market Conditions [Member]	Jan. 23, 2013 Cincinnati Bell Inc. [Member]	Sep. 30, 2014 Minimum [Member]	Sep. 30, 2014 Minimum [Member] Trademarks and Customer Relationships [Member]	Sep. 30, 2014 Maximum [Member]	Sep. 30, 2014 Maximum [Member] Trademarks and Customer Relationships [Member]	Sep. 30, 2014 Building [Member] Minimum [Member]	Sep. 30, 2014 Building [Member] Maximum [Member]	Sep. 30, 2014 Building Improvements [Member] Minimum [Member]	Sep. 30, 2014 Building Improvements [Member] Maximum [Member]	Sep. 30, 2014 Equipment [Member] Minimum [Member]	Sep. 30, 2014 Equipment [Member] Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Receivables due term										30 days		120 days
Percentage of lease term	75.00%
Percentage of lease payment	90.00%
Impairments amount recognized	$ 0
Useful life of finite-lived intangible assets											8 years		15 years
Lease term of favorable leasehold interest which being amortized	56 years
Transaction-related compensation									20,000,000
Useful life		25 years												9 years	48 years	3 years	25 years	3 years	5 years
Impairment of real estate	$ 0
Issuance of restricted shares (in shares)			1	1
Vesting period of restricted stock			3 years	3 years	3 years	3 years
Granted (in dollars per share)			$ 19.00
Award vesting rights, percentage							50.00%	50.00%