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Number Of Stores Closed

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Revenue Recognition, Payment Terms

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The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total expense recognized in the period for promotion, public relations, and brand or product advertising.

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Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount of consideration paid in advance for advertising that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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General - Narrative (Details) $ in Thousands	12 Months Ended
General - Narrative (Details) $ in Thousands	Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($) store	Mar. 31, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Number of reportable segments \| segment	6
Money market funds	$ 436,241	$ 372,178
Asset retirement obligation	11,505	12,667
Asset impairment charges	1,365	180	$ 2,417
Research and development costs	27,555	23,187	22,372
Advertising, marketing, and promotion expense	144,948	118,291	111,658
Prepaid advertising, marketing, and promotion expense	$ 2,664	6,006
Employer matching contribution percentage	50.00%
Employer matching contribution, percent of employees' gross pay	6.00%
Defined contribution plan cost	$ 3,251	$ 3,060	2,269
Facility Closing \| Fiscal Year 2016 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Number of stores closed \| store		46
Direct-to-Consumer
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	$ 1,365	$ 180	$ 2,417
Minimum
Restructuring Cost and Reserve [Line Items]
Property, plant and equipment useful life (at least)	1 year
Customer payment terms	30 days
Minimum \| Cloud Computing Arrangement
Restructuring Cost and Reserve [Line Items]
Hosting arrangement useful life	1 year
Maximum
Restructuring Cost and Reserve [Line Items]
Derivative term of contract	15 months
Customer payment terms	60 days
Maximum \| Cloud Computing Arrangement
Restructuring Cost and Reserve [Line Items]
Hosting arrangement useful life	5 years
Camarillo Distribution Center \| Building and Building Improvements
Restructuring Cost and Reserve [Line Items]
Liabilities settled, asset retirement obligation	$ (1,828)