Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Sep. 28, 2018	Jun. 24, 2014	May 31, 2019	May 31, 2018	May 31, 2017	May 31, 2016	Sep. 26, 2018	May 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized for issuance			2,655,478
Pre-tax stock-based compensation expense			$ 11,733	$ 13,758	$ 14,349
Stock based compensation expense, after tax			9,034	9,482	9,112
Unrecognized compensation cost			$ 19,403
Unrecognized compensation cost related to non-vested awards, expense period			3 years
Unrecognized compensation cost							$ 261
Non-Qualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price percentage of fair market value on the date of grant for stock options			100.00%
Stock options expiration period			10 years
Pre-tax stock-based compensation expense			$ 1,199	1,203	1,146
Total intrinsic value of stock options exercised			6,314
Cash received from the exercise of stock options			5,085
Tax benefit realized from share-based payment awards			$ 2,792
Non-Qualified Stock Options | First Anniversary | Issued Before June 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting percentage			20.00%
Non-Qualified Stock Options | First Anniversary | Issued On or After June 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting percentage			33.00%
Non-Qualified Stock Options | Second Anniversary | Issued Before June 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting percentage			20.00%
Non-Qualified Stock Options | Second Anniversary | Issued On or After June 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting percentage			33.00%
Non-Qualified Stock Options | Third Anniversary | Issued Before June 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting percentage			20.00%
Non-Qualified Stock Options | Third Anniversary | Issued On or After June 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting percentage			33.00%
Non-Qualified Stock Options | Fourth Anniversary | Issued Before June 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting percentage			20.00%
Non-Qualified Stock Options | Fifth Anniversary | Issued Before June 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting percentage			20.00%
Non-Qualified Stock Options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price percentage of fair market value on the date of grant for stock options			100.00%
Service-Based Restricted Common Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax stock-based compensation expense			$ 14,692	$ 7,605	$ 19,841
Pre-tax stock-based compensation, period of recognition			3 years
Restricted common shares, granted			339,000	176,000	525,000
Restricted common shares, fair value per share			$ 43.35	$ 47.88	$ 42.28
Restricted common shares, outstanding			811,000	796,000	865,000	698,000
Market-Based Restricted Common Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax stock-based compensation, period of recognition	5 years
Restricted common shares, granted	225,000	50,000
Common share awards vesting, minimum price per share	$ 65.00	$ 60.00
Common share awards vesting, minimum consecutive days at stated price	90 days	30 days
Restricted common shares, fair value per share	$ 23.38	$ 32.06
Unrecognized compensation cost	$ 5,261							$ 1,603
Restricted common shares, outstanding			25,000
Restricted common shares, cancelled						25,000