Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jan. 25, 2020	Jan. 26, 2019
Deferred tax assets:
Insurance and other reserves	$ 22,489	$ 22,885
Allowance for doubtful accounts and reserves	2,342	5,323
Net operating loss carryforwards	1,487	5,515
Stock-based compensation	2,961	3,324
Leases	18,002
Other	3,098	3,764
Total deferred tax assets	50,379	40,811
Valuation allowance	(1,126)	(418)
Deferred tax assets, net of valuation allowance	49,253	40,393
Deferred tax liabilities:
Property and equipment	76,385	77,490
Goodwill and intangibles	29,563	27,780
Leases	17,856
Other	976	1,086
Deferred tax liabilities	124,780	106,356
Net deferred tax liabilities	$ 75,527	$ 65,963