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Risks and uncertainties (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Loans and notes receivable from distributors, allowances for uncollectible accounts [Line Items]
Loans and notes receivable from distributors	$ 28,886	$ 37,076
Loans and notes receivable from distributors [Member]
Loans and notes receivable from distributors, allowances for uncollectible accounts [Line Items]
Allowance for uncollectible accounts	$ 3,361	$ 3,995	$ 10,415	$ 284

X

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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X

- Definition

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+ References

No definition available.

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- Definition

Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

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