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TECHNICAL RESERVES FOR INSURANCE CLAIMS AND PREMIUMS (Details Textual) - PEN (S/) S/ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Disclosure of insurance claim reserves and technical reserves [Line Items] |  |
Provisions for future non-participating benefits | S/ 8,452,671 | S/ 7,443,760
Life insurance contracts [member] |  |
Disclosure of insurance claim reserves and technical reserves [Line Items] |  |
Provisions for future non-participating benefits | 7,062,380 | 6,226,648
Claims incurred but not reported | 314,500 | 282,400
General insurance contracts [Member] |  |
Disclosure of insurance claim reserves and technical reserves [Line Items] |  |
Provisions for future non-participating benefits | 1,156,368 | 998,434
Claims incurred but not reported | 16,700 | 11,300
Health insurance contracts [Member] |  |
Disclosure of insurance claim reserves and technical reserves [Line Items] |  |
Provisions for future non-participating benefits | 233,923 | 218,678
Claims incurred but not reported | 50,200 | 47,600
Mathematic reserve [Member] | Life insurance contracts [member] |  |
Disclosure of insurance claim reserves and technical reserves [Line Items] |  |
Provisions for future non-participating benefits | S/ 4,073,300 | S/ 3,514,400

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