Income Taxes - Components of Provision for Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Nov. 30, 2013	Nov. 30, 2014	Feb. 28, 2013	Nov. 30, 2012
Successor [Member]
Schedule Of Allocation Of Income Tax Expense Benefit [Line Items]
U.S. Federal	$ 50,089	$ 4,335
U.S. state and local	6,263	4,056
Foreign	7,050	11,475
Current income tax expense (benefit), total	63,402	19,866
U.S. Federal	25,262	87,293
U.S. state and local	8,868	27,181
Foreign	(2,846)	7,721
Deferred income tax expense (benefit), total	31,284	122,195
Total income taxes	94,686	142,061
Predecessor [Member]
Schedule Of Allocation Of Income Tax Expense Benefit [Line Items]
U.S. Federal			22,936	62,710
U.S. state and local			(3,176)	18,520
Foreign			(1,950)	2,773
Current income tax expense (benefit), total			17,810	84,003
U.S. Federal			17,392	79,224
U.S. state and local			9,761	13,006
Foreign			3,682	(7,587)
Deferred income tax expense (benefit), total			30,835	84,643
Total income taxes			$ 48,645	$ 168,646