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v3.21.1

Concentration of Business (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 USD ($) tannery | Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2021 USD ($) tannery | Mar. 31, 2020 USD ($) | Mar. 31, 2019 USD ($)
Concentration Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 561,188 | $ 1,077,759 | $ 623,525 | $ 283,169 | $ 374,910 | $ 938,735 | $ 542,205 | $ 276,839 | $ 2,545,641 | $ 2,132,689 | $ 2,020,437
Number of tanneries | tannery | 2 |  |  |  |  |  |  |  | 2 |  |
Long-lived assets | $ 206,210 |  |  |  | 209,037 |  |  |  | $ 206,210 | 209,037 |
Trade Accounts Receivable | Customer Concentration Risk | One Customer |  |  |  |  |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |
Concentration risk |  |  |  |  |  |  |  |  | 12.80% |  |
Foreign |  |  |  |  |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 11,377 |  |  |  | 14,358 |  |  |  | $ 11,377 | 14,358 |
Foreign | International net sales |  |  |  |  |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 784,164 | 730,997 | 742,079
Foreign | Net sales in foreign currencies |  |  |  |  |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 611,897 | $ 587,233 | $ 605,725
Foreign | Sales Revenue, Net | International net sales |  |  |  |  |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |
Concentration risk |  |  |  |  |  |  |  |  | 30.80% | 34.30% | 36.70%
Foreign | Sales Revenue, Net | Net sales in foreign currencies |  |  |  |  |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |
Concentration risk |  |  |  |  |  |  |  |  | 24.00% | 27.50% | 30.00%
Foreign | Sales Revenue, Net | Customer Concentration Risk | 10 Largest Customers |  |  |  |  |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |
Concentration risk |  |  |  |  |  |  |  |  | 27.80% | 28.00% | 27.70%
US |  |  |  |  |  |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | $ 194,833 |  |  |  | $ 194,679 |  |  |  | $ 194,833 | $ 194,679 |

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