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Accounts receivable - Net: (Details) - MXN ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts receivable - Net:
Clients	$ 2,191,439	$ 1,458,653
Less: impairment provision	(317,664)	(346,183)	$ (191,766)
Clients, accounts receivable, net	1,873,775	1,112,470
Notes receivable from clients	4,463	245,757
Total accounts receivable	$ 1,878,238	$ 1,358,227

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- Definition

Amount of document receivables from clients which as guarantee provided by clients.

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- Definition

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- Definition

The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets]

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- Definition

The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables]

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- Definition

The amount due from customers for goods and services sold.

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