Related Party Transactions (Narrative) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) Property	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Related Party Transactions [Abstract]
Properties owned | Property	8
Revenue earned	$ 0.8	$ 0.6	$ 1.0
Landlord interest	50.00%
Total rent expense	$ 1.3	$ 1.2	$ 1.4