Leases - Schedule of Changes in Future Minimum Lease Obligations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Leases [Abstract]
Balance, Beginning of Period	$ 7,094	$ 7,259	$ 9,241
Charges Incurred	20,552	4,496	2,579
Net Cash Payments	(18,817)	(5,475)	(7,825)
Other	4,063	814	3,264
Balance, End of Period	$ 12,892	$ 7,094	$ 7,259