Cost Reduction Plan - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended
	Jan. 30, 2014 Employees	Feb. 28, 2014
Restructuring Cost and Reserve [Line Items]
Reduction in headcount of employees	260
Liability consisting of cost of severance, employee-related benefits and other associated expenses		$ 10,000,000
Restructuring plan cost		5.0
Rocketdyne Business [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring plan cost		$ 5.0