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Summary of significant accounting policies (Tables) | 12 Months Ended
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Mar. 31, 2021
Accounting Policies [Abstract] |
Schedule of Concentrations of Risk | During the years ended March 31, 2021, March 31, 2020, December 31, 2018 and the three-month transition period ended March 31, 2019, two customers individually accounted for greater than 10% of the Company’s net sales as disclosed below:
| Year ended March 31, |  | Three months ended March 31, (transition period) |  | Year ended December 31,
| 2021 |  | 2020 |  |  |  | 2019 |  | 2018
Walmart | 26 | % |  | 31 | % |  |  |  | 36 | % |  | 30 | %
Target | 22 | % |  | 22 | % |  |  |  | 17 | % |  | 21 | %
Customers that individually accounted for greater than 10% of the Company’s accounts receivable at the end of the periods as of March 31, 2021 and March 31, 2020, respectively, are as presented:
| March 31, 2021 |  | March 31, 2020
Walmart | 33 | % |  | 20 | %
Target | 17 | % |  | 22 | %
Ulta Beauty | 11 | % |  | *
* Customer comprised less than 10% accounts receivable in the periods.
Schedule of Useful Lives by Major Asset Class | Useful lives by major asset class are as follows:
| Estimated useful lives
Machinery, equipment and software | 3 - 5 years
Leasehold improvements | 5 years
Furniture and fixtures | 2 - 5 years
Store fixtures | 1 - 3 years
Net Sales in United States and Outside of United States | During the years ended March 31, 2021, March 31, 2020, December 31, 2018 and the three-month transition period ended March 31, 2019, net sales in the United States and outside of the United States were as follows (in thousands):
| Year ended March 31, |  | Three months ended March 31, (transition period) |  | Year ended December 31,
| 2021 |  | 2020 |  |  |  | 2019 |  | 2018
United States | $ | 284,203 |  |  | $ | 255,284 |  |  |  |  | $ | 59,797 |  |  | $ | 241,159 |
International | 33,907 |  |  | 27,567 |  |  |  |  | 6,344 |  |  | 26,276 |
Total net sales | $ | 318,110 |  |  | $ | 282,851 |  |  |  |  | $ | 66,141 |  |  | $ | 267,435 |
Property and Equipment in United States and Outside of United States | As of March 31, 2021 and March 31, 2020, the Company had property and equipment in the United States and outside of the United States as follows (in thousands):
| March 31, 2021 |  | March 31, 2020 |  |
United States | $ | 13,524 |  |  | $ | 16,845 |  |  |
International | 246 |  |  | 326 |  |  |
Total property and equipment, net | $ | 13,770 |  |  | $ | 17,171 |  |  |
Reconciliation of Sales Allowances | A reconciliation of the beginning and ending amounts of the reserve for sales adjustments for the years ended March 31, 2021, March 31, 2020, December 31, 2018 and the three-month transition period ended March 31, 2019 is as follows (in thousands):
Balance as of December 31, 2017 | $ | 8,458 |
Charges | 26,971 |
Deductions | (27,655) |
Balance as of December 31, 2018 | 7,774 |
Charges | 6,787 |
Deductions | (8,016) |
Balance as of March 31, 2019 | 6,545 |
Charges | 29,576 |
Deductions | (28,508) |
Balance as of March 31, 2020 | 7,613 |
Charges | 41,027 |
Deductions | (36,727) |
Balance as of March 31, 2021 | $ | 11,913 |
Accounting Standards Update and Change in Accounting Principle | The following table provides a brief description of recent accounting pronouncements that could have a material effect on the Company’s financial statements:
Recently adopted accounting standards
Standard | Description | Date of expected adoption/adoption | Effect on the financial statements or other significant matters
ASU 2018-15, Intangibles-Goodwill and Other- Internal-Use Software (Subtopic 350-40) | The standard will require customers in a cloud computing arrangement that is a service contract to follow the internal-use software guidance in ASC 350-40 to determine which implementation costs to capitalize as assets or expense as incurred. Certain implementation costs incurred during the application development stage would be deferred and capitalized (e.g., costs of integration with on-premises software, coding, configuration, customization). Other costs incurred during the preliminary project and post-implementation stages would be expensed (e.g., planning the project, training, maintenance after implementation, data conversion). The amendments in the ASU can be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption. | April 1, 2020 | The Company adopted ASU 2018-15 prospectively, and the adoption of the standard did not have a material impact on the Company’s consolidated financial statements.
ASU 2019-12—Income Taxes (TOPIC 740): Simplifying the Accounting for Income Taxes | The guidance eliminates certain exceptions related to intraperiod tax allocations, the methodology for calculating income taxes in an interim period, and the recognition of deferred tax liabilities for outside basis differences related to changes in ownership of equity method investments and foreign subsidiaries. The guidance also simplifies aspects of accounting for franchise taxes and enacted changes in tax laws, and clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. The new standard is effective for interim and annual periods beginning after December 15, 2020, and early adoption is permitted. | January 1, 2021 | The adoption of the standard had no impact on the Company’s consolidated financial statements.

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