Appendix 2 Additional Information No. 715 of February 3, 2012 - Summary of Number and Value of Operations (Detail) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2020 CLP ($) item	Dec. 31, 2019 CLP ($) item	Dec. 31, 2021 CLP ($) item	Dec. 31, 2020 CLP ($) item
Impairment Provisions And Recoveries [Abstract]
Number of Transactions | item	24,625	10,390	83,672	72,590
Amount of the transactions | $	$ 3,840,423	$ 7,768,107	$ 18,765,175	$ 15,167,707