Retirement Benefits - Additional Information (Detail) - USD ($)	3 Months Ended	8 Months Ended	11 Months Ended	12 Months Ended
	Jan. 30, 2015	Oct. 02, 2015	Oct. 02, 2015	Sep. 30, 2016	Oct. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation		$ 433,100,000	$ 433,100,000	$ 482,200,000
Company contribution expense			9,500,000	$ 10,700,000	$ 10,300,000
Increase/decrease discount rate basis points				0.25%
Decrease in pension liability based on basis points				$ 14,500,000
Increase in pension liability based on basis points				$ 15,200,000
Increase/decrease health care trend rate basis points				1.00%
Increase in Post Retirement Benefit Obligation based on basis points				$ 1,100,000
Decrease in Post Retirement Benefit Obligation based on basis points				$ 900,000
Employer matching contribution percent				6.00%
Defined contribution plan description				The three formulas used are: 25% of the first 6%; or 50% of the first 6%; or 100% of the first 2% and 50% on the next 4%.
Other Non-U.S Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation				$ 37,500,000
Defined benefit plan, plan assets				21,200,000
Pension and post-retirement obligations				27,100,000
Company contribution expense			1,700,000	5,000,000
Expected funding requirement for fiscal 2017				700,000
Defined benefit plan projected benefit obligation				48,400,000
CMC Defined Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation				137,600,000
Defined benefit plan, plan assets				133,700,000
Pension and post-retirement obligations				4,600,000
Company contribution expense			6,300,000	5,600,000
Expected funding requirement for fiscal 2017				3,700,000
Defined benefit plan projected benefit obligation				$ 138,300,000
Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan expected future investment return				3.25%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan expected future investment return				8.00%
Esterline Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan participation, percentage				41.00%
Defined benefit plan pension benefits based on average compensation, years				5 years
Defined benefit plan, service period related to benefit, years				5 years
Defined benefit plans based on compensation during last years of employment				10 years
Defined benefit plan amendment date				Jan. 01, 2003
Defined benefit plan projected benefit obligation				$ 318,700,000
Accumulated benefit obligation				307,000,000
Defined benefit plan, plan assets				270,900,000
Pension and post-retirement obligations				47,800,000
Company contribution expense			1,200,000	1,400,000
Expected funding requirement for fiscal 2017				$ 0
Contractual termination	$ 16,600,000	$ 1,400,000
Settlement	$ 3,000,000		$ 500,000
Esterline Plans | Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan annual pay credits				2.00%
Esterline Plans | Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan annual pay credits				6.00%