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8. CRC Transferred to the Parana State Government (Tables)
 12 Months Ended
Dec. 31, 2018
Crc Transferred To Parana State Government Tables Abstract  
Changes in CRC
                 
Balance as of   Monetary   Balance as of   Monetary   Balance as of
January 1, 2017 Interest variations Amortizations December 31, 2017 Interest variations Amortizations December 31, 2018
 1,522,735  97,085  (6,373)  (97,085)  1,516,362  93,009  95,788  (260,117)  1,445,042
Current        167,109        190,876
Noncurrent        1,349,253        1,254,166
Maturity of Noncurrent Installments
   
2020  203,570
2021  217,108
2022  231,547
2023  246,946
2024  263,369
After 2024  91,626
   1,254,166