Income Taxes - Schedule of Reconciliation of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Income Tax Disclosure [Abstract]
Balance at beginning of fiscal year	$ 8,152	$ 2,190	$ 921
Gross increases—prior period tax positions	239	5,491	53
Gross increases—current period tax positions	375	471	1,216
Lapses in statute of limitations	(307)
Balance at end of fiscal year	$ 8,459	$ 8,152	$ 2,190

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Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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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.

+ References

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

+ References

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