INVESTMENTS - Government Treasury Bonds (Details) - PEN (S/)
S/ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
| Disclosure of Investments [Line Items] |
|
|
| Financial assets at fair value through profit or loss, classified as held for trading |
S/ 625,762
|
S/ 518,488
|
| Available-for-sale investments [Member] |
|
|
| Disclosure of Investments [Line Items] |
|
|
| Financial assets at fair value through profit or loss, classified as held for trading |
6,698,076
|
5,190,748
|
| Peruvian sovereign bonds [Member] | Available-for-sale investments [Member] |
|
|
| Disclosure of Investments [Line Items] |
|
|
| Financial assets at fair value through profit or loss, classified as held for trading |
5,959,066
|
4,706,121
|
| Bolivian sovereign bonds [Member] | Available-for-sale investments [Member] |
|
|
| Disclosure of Investments [Line Items] |
|
|
| Financial assets at fair value through profit or loss, classified as held for trading |
72,516
|
90,370
|
| Colombian sovereign bonds [Member] | Available-for-sale investments [Member] |
|
|
| Disclosure of Investments [Line Items] |
|
|
| Financial assets at fair value through profit or loss, classified as held for trading |
61,009
|
137,936
|
| U.S. Federal agency bonds [Member] | Available-for-sale investments [Member] |
|
|
| Disclosure of Investments [Line Items] |
|
|
| Financial assets at fair value through profit or loss, classified as held for trading |
391,475
|
82,477
|
| Other bonds [Member] | Available-for-sale investments [Member] |
|
|
| Disclosure of Investments [Line Items] |
|
|
| Financial assets at fair value through profit or loss, classified as held for trading |
40,646
|
54,327
|
| Chilean sovereign bonds [Member] | Available-for-sale investments [Member] |
|
|
| Disclosure of Investments [Line Items] |
|
|
| Financial assets at fair value through profit or loss, classified as held for trading |
S/ 173,364
|
S/ 119,517
|