Retirement Benefits - Additional Information (Detail) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended
	Oct. 31, 2014 Participants	Oct. 25, 2013	Oct. 26, 2012	Dec. 31, 2014 Participants	Oct. 25, 2013
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	$ 458,877,000	$ 427,625,000			$ 427,625,000
Pension and post-retirement obligations	62,693,000	68,102,000			68,102,000
Company contribution expense	10,300,000	9,421,000	8,900,000
Increase/decrease discount rate basis points	25
Decrease in pension liability based on basis points	13,000,000
Increase in pension liability based on basis points	13,500,000
Increase/decrease health care trend rate basis points	100
Increase in Post Retirement Benefit Obligation based on basis points	1,600,000
Decrease in Post Retirement Benefit Obligation based on basis points	400,000
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%.
Number of vested terminated participants to elect a lump sum payment in lieu of a lifetime annuity	1,000
Settlement charges	3,000,000
Scenario, Forecast
Defined Benefit Plan Disclosure [Line Items]
Number of participant elected lump sum payment option				380
Contractual termination				16,300,000
Other Non-U.S Defined Benefit Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan projected benefit obligation	30,184,000
Accumulated benefit obligation	24,284,000
Defined benefit plan, plan assets	5,387,000
Pension and post-retirement obligations	24,797,000
Company contribution expense	2,717,000				1,894,000
Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan expected future investment return	6.30%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan expected future investment return	7.00%
United States Defined Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan participation, percentage	37.00%
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	2003-01-01
Defined benefit plan projected benefit obligation	304,379,000
Accumulated benefit obligation	296,893,000
Defined benefit plan, plan assets	289,894,000
Pension and post-retirement obligations	14,484,000
Company contribution expense	13,270,000				16,174,000
Expected funding requirement for fiscal 2015	0
United States Defined Pension Benefit Plans | Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan annual pay credits	2.00%
United States Defined Pension Benefit Plans | Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan annual pay credits	6.00%
CMC Defined Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan projected benefit obligation	137,700,000
Accumulated benefit obligation	138,785,000
Defined benefit plan, plan assets	132,193,000
Pension and post-retirement obligations	6,592,000
Company contribution expense	7,537,000				10,859,000
Expected funding requirement for fiscal 2015	$ 5,600,000