Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Oct. 27, 2017	Mar. 31, 2017	Oct. 29, 2017	Oct. 30, 2016
Valuation Allowance [Line Items]
Capital loss carryforwards			$ 13,500
Net deferred tax assets, valuation allowance			134,195	$ 144,863
Increase related to current year tax provisions			2,973	0
Unrecognized tax benefits that would impact effective tax rate			1,500	2,500
Accrued interest and penalties			200	$ 1,500
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit			1,000
Tax benefit from resolution of uncertain tax positions			1,300
Proceeds from federal refunds related to the completion of the audit periods		$ 13,800
United States-Federal
Valuation Allowance [Line Items]
Net operating loss carryforwards			155,700
United States-State
Valuation Allowance [Line Items]
Net operating loss carryforwards			195,200
International Staffing
Valuation Allowance [Line Items]
Net operating loss carryforwards			$ 9,600
U.S. Domestic
Valuation Allowance [Line Items]
Domestic operating loss period			3 years
Disposed of by sale | Quality Assurance Business
Valuation Allowance [Line Items]
Increase related to current year tax provisions	$ 3,700