Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Income Taxes
Balance at beginning of fiscal year	$ 8,459	$ 8,152	$ 2,190
Gross increases-prior period tax positions		239	5,491
Gross decreases-prior period tax positions	(2)
Gross increases-current period tax positions	438	375	471
Lapses in statute of limitations	(381)	(307)
Balance at end of fiscal year	$ 8,514	$ 8,459	$ 8,152

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Amount of unrecognized tax benefits.

+ References

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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