Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions			1 Months Ended		12 Months Ended
	Jun. 05, 2015	Mar. 10, 2014	Jun. 30, 2015	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Related Party Transactions [Abstract]
Maximum percentage of interest on amounts due from affiliates					7.07%
Number of partnership units acquired from other limited partners (in shares)	7,000,000	9,300,000	7,000,000	9,300,000
Payment of aircraft related expenses					$ 4.4	$ 5.2	$ 7.4