Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	2 Months Ended	10 Months Ended	12 Months Ended
	Mar. 03, 2018	Dec. 31, 2017	Mar. 03, 2018	Feb. 25, 2017	Feb. 27, 2016	Feb. 28, 2015
Income Taxes [Line Items]
Statutory federal income tax rate	21.00%	35.00%	32.70%	35.00%	35.00%
Tax cuts and jobs act 2017, percentage of immediate deduction for certain new investments			100.00%
Tax cuts and jobs act 2017, Non-cash tax benefit from provision estimate of remeasurment of federal deferred tax assets and liabilites			$ 323
Unrecognized tax benefits	$ 4,906		4,906	$ 6,990	$ 2,551	$ 765
Unrecognized tax benefits, income tax penalties and interest			118	142	$ 286
Unrecognized tax benefits, income tax penalties and interest accrued	602		602	379
State
Income Taxes [Line Items]
Net operating loss carryforward	472		472	236
Tax credits	$ 1,822		1,822	1,512
Valuation allowance, deferred tax assets			$ 1,308	$ 822
State | Earliest Tax Year
Income Taxes [Line Items]
State net operating loss carryforwards expiration year			2020
Tax credit carryforwards expiration year			2024
State | Latest Tax Year
Income Taxes [Line Items]
State net operating loss carryforwards expiration year			2034
Tax credit carryforwards expiration year			2038