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Borrowings and debt - Schedule of borrowings and debt (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Statement [Line Items] |  |
Short-term, borrowings | $ 1,547,845 | $ 331,585
Short-term, debt | 34,213 | 49,350
Short-term, lease liabilities | 996 | 1,244
Long-term, borrowings | 329,390 | 475,852
Long-term debt | 1,392,730 | 1,109,484
Long-term, lease liabilities | 16,737 | 17,555
Total | 3,321,911 | 1,985,070
Principal |  |
Statement [Line Items] |  |
Short-term, borrowings | 1,547,845 | 331,585
Short-term, debt | 34,213 | 49,350
Short-term, lease liabilities | 996 | 1,244
Long-term, borrowings | 329,888 | 477,010
Long-term debt | 1,398,223 | 1,116,033
Long-term, lease liabilities | 16,737 | 17,555
Total | 3,327,902 | 1,992,777
Prepaid commissions |  |
Statement [Line Items] |  |
Short-term, borrowings | 0 | 0
Short-term, debt | 0 | 0
Short-term, lease liabilities | 0 | 0
Long-term, borrowings | (498) | (1,158)
Long-term debt | (5,493) | (6,549)
Long-term, lease liabilities | 0 | 0
Total | $ (5,991) | $ (7,707)

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