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Joint Ventures (Details 3) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Statement [Line Items] |  |  |  |
Cash and cash equivalents | $ 588,530 | $ 556,066 | $ 630,438 | $ 514,669
Other current financial liabilities | 298,822 | 23,585 |  |
Other non-current financial liabilities | 1,518,926 | 1,330,382 |  |
Depreciation and amortisation expense | (202,264) | (220,827) | (240,526) |
Interest Expense | (76,939) | (57,807) | (50,124) |
Sichuan SQM Migao Chemical Fertilizers Co Ltda. [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Cash and cash equivalents | 33 | 106 |  |
Other current financial liabilities | 0 | 0 |  |
Other non-current financial liabilities | 0 | 0 |  |
Depreciation and amortisation expense | (743) | (948) | (691) |
Interest Expense | 0 | (1) | (433) |
Income Tax Expense (Benefit) | 153 | 97 | 200 |
Coromandel SQM India [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Cash and cash equivalents | 2,240 | 308 |  |
Other current financial liabilities | 0 | 0 |  |
Other non-current financial liabilities | 0 | 0 |  |
Depreciation and amortisation expense |  | (445) | 0 |
Depreciation and amortisation expense | (291) |  |  |
Interest Expense | (4) | (9) | (49) |
Income Tax Expense (Benefit) | (27) | (38) | (44) |
SQM Vitas Fzco. [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Cash and cash equivalents | 3,071 | 19,312 |  |
Other current financial liabilities | 0 | 0 |  |
Other non-current financial liabilities | 0 | 0 |  |
Depreciation and amortisation expense | 0 | (509) | (717) |
Interest Expense | (7) | (8) | (16) |
Income Tax Expense (Benefit) | 0 | 0 | 0 |
SQM Star Qingdao Corp Nutrition Co., Ltd. [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Cash and cash equivalents | 4,640 | 4,543 |  |
Other current financial liabilities | 0 | 0 |  |
Other non-current financial liabilities | 0 | 0 |  |
Depreciation and amortisation expense | (62) | (67) | (64) |
Interest Expense | 0 | 0 | (1) |
Income Tax Expense (Benefit) | (241) | (187) | (195) |
SQM Vitas Brazil Agroindustria [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Cash and cash equivalents | 2,101 | 1,869 |  |
Other current financial liabilities | 9,106 | 13,380 |  |
Other non-current financial liabilities | 0 | 0 |  |
Depreciation and amortisation expense | (33) | (408) | (438) |
Interest Expense | (1,176) | (886) | (2,127) |
Income Tax Expense (Benefit) | 181 | (117) | 0 |
SQM Vitas Peru S.A.C. [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Cash and cash equivalents | 225 | 371 |  |
Other current financial liabilities | 258 | 3,819 |  |
Other non-current financial liabilities | 895 | 801 |  |
Depreciation and amortisation expense | (287) | (347) | (82) |
Interest Expense | (435) | (425) |  |
Income Tax Expense (Benefit) | (316) | (230) | (362) |
SQM Vitas Plantacote B.V [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Depreciation and amortisation expense | 0 | 0 | 0 |
Interest Expense | 0 | 0 |  |
Income Tax Expense (Benefit) | 0 | 0 | 0 |
SQM Vitas Holland B.V. [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Cash and cash equivalents | 2,609 | 2,692 |  |
Other current financial liabilities | 0 | 0 |  |
Other non-current financial liabilities | 0 | 0 |  |
Depreciation and amortisation expense | 0 | 0 | 0 |
Interest Expense | (1) | 0 | 0 |
Income Tax Expense (Benefit) | 0 | 0 | (337) |
Joint ventures [member] |  |  |  |
Statement [Line Items] |  |  |  |
Cash and cash equivalents | 15,926 | 29,764 |  |
Other current financial liabilities | 15,345 | 22,663 |  |
Other non-current financial liabilities | 895 | 801 |  |
Depreciation and amortisation expense | (1,691) | (2,392) | (1,992) |
Interest Expense | (1,655) | (1,669) | (2,950) |
Income Tax Expense (Benefit) | (464) | (521) | (738) |
Pavoni C Spa [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Cash and cash equivalents | 314 | 407 |  |
Other current financial liabilities | 5,509 | 5,464 |  |
Other non-current financial liabilities | 0 | 0 |  |
Depreciation and amortisation expense | (149) | (542) | 0 |
Interest Expense | 0 | (335) | 0 |
Income Tax Expense (Benefit) | (214) | 0 | 0 |
Covalent Lithium Pty Ltd [Member] |  |  |  |
Statement [Line Items] |  |  |  |
Cash and cash equivalents | 693 | 156 |  |
Other current financial liabilities | 472 | 0 |  |
Other non-current financial liabilities | 0 | 0 |  |
Depreciation and amortisation expense | (126) | (16) | 0 |
Interest Expense | (32) | (5) | 0 |
Income Tax Expense (Benefit) | $ 0 | $ (46) | $ 0 |

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