Certain Relationships And Related Party Transactions (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 03, 2015
Certain Relationships And Related Party Transactions [Abstract]
Management agreement maturity date	2018
Management fee, rate per year	$ 15.0
Management fees and reimbursable expenses	$ 3.8	$ 3.9
C C O H [Member] | Common Class B [Member]
Certain Relationships And Related Party Transactions [Abstract]
Contribution of shares related parties			100,000,000