Basis of Presentation - Summary of Unrecognized Compensation Cost Related to Non-vested Awards Granted (Detail) (USD $) In Thousands, unless otherwise specified	May 03, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	$ 1,352
2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	640
2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	590
2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	116
2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	$ 6