Goodwill and intangible assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands |
Mar. 31, 2023 |
Mar. 31, 2022 |
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross carrying amount | $ 2,500 | $ 15,900 |
| Accumulated amortization | (1,179) | (13,372) |
| Net carrying amount | 1,321 | 2,528 |
| Trade name and other intangibles [Member] | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross carrying amount | 2,500 | 15,900 |
| Accumulated amortization | (1,179) | (13,372) |
| Net carrying amount | $ 1,321 | $ 2,528 |