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v3.19.2

Retrospective restatement of the 2016 and 2017 financial statements (Schedule of Short and Long Term Receivable) (Details) - MXN ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Statement Line Items [Line Items] |  |
Beginning Balance |  |
Interest | 0 | $ 0
Difference from changes | 0 | 0
Ending Balance | 265,875 |
Proyectos Comercializadora el Ninzi, S.A. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 1,695,921 |
Ending Balance | 376,790 | 1,695,921
Compania Laminadora Vista Hermosa, S.A. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Ending Balance | 183,171 |
Operadora Compania Mexicana de Tubos S.A. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Ending Balance | 38,232 |
Industrias CH, S.A.B. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 530,281 |
Ending Balance | 730,278 | 530,281
Perfiles Comerciales Sigosa, S.A. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 806,397 |
Ending Balance | 579,047 | 806,397
Accounts receivable [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 201,464 | 177,101
Interest |  | 0
Loans |  | 0
Difference from changes |  | 0
Payments | (145,824) |
Transaction of the year | (39,859) | 24,363
Ending Balance | 15,731 | 201,464
Accounts receivable [Member] | Pytsa Industrial de Mexico, S.A. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 50 | 437
Transaction of the year | (50) | (387)
Ending Balance |  | 50
Accounts receivable [Member] | Proyectos Comercializadora el Ninzi, S.A. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 145,824 | 145,824
Payments | (145,824) |
Ending Balance |  | 145,824
Accounts receivable [Member] | Other accounts receivable by operation [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 55,590 | 30,840
Transaction of the year | (39,859) | 24,750
Ending Balance | 15,731 | 55,590
Short term loans [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance |  |
Interest | 2,839 |
VAT on invoiced interest | 0 |
Loans | 263,036 |
Difference from changes | 0 |
Payments | 0 |
Transaction of the year | 0 |
Ending Balance | 265,875 |
Short term loans [Member] | Compania Laminadora Vista Hermosa, S.A. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance |  |
Interest | 915 |
Loans | 182,256 |
Ending Balance | 183,171 |
Short term loans [Member] | Compania Manufacturera de Tubos, S.A. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance |  |
Interest | 1,039 |
Loans | 43,433 |
Ending Balance | 44,472 |
Short term loans [Member] | Operadora Compania Mexicana de Tubos S.A. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance |  |
Interest | 885 |
Loans | 37,347 |
Ending Balance | 38,232 |
Long term accounts receivable [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 648,281 | 648,239
VAT on invoiced interest | 0 |
Loans | 0 |
Difference from changes | 0 |
Transaction of the year |  | 42
Ending Balance | 648,281 | 648,281
Long term accounts receivable [Member] | Industrias CH, S.A.B. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 648,281 | 648,239
Transaction of the year |  | 42
Ending Balance | 648,281 | 648,281
Long term loans payable [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 3,032,599 | 2,364,545
Interest | 224,639 | 198,053
VAT on invoiced interest | 2,714 |
Loans | 214,028 | 412,443
Difference from changes | 5,677 | 57,558
Payments | (1,793,542) |
Transaction of the year | 0 | 0
Ending Balance | 1,686,115 | 3,032,599
Long term loans payable [Member] | Proyectos Comercializadora el Ninzi, S.A. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 1,695,921 | 1,571,048
Interest | 136,022 | 124,873
Payments | (1,455,153) |
Ending Balance | 376,790 | 1,695,921
Long term loans payable [Member] | Industrias CH, S.A.B. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 530,281 | 88,433
Interest | 22,953 | 12,797
VAT on invoiced interest | 2,714 |
Loans | 214,028 | 412,443
Difference from changes | 1,732 | 16,608
Payments | (41,430) |
Ending Balance | 730,278 | 530,281
Long term loans payable [Member] | Perfiles Comerciales Sigosa, S.A. de C.V. [Member] |  |
Statement Line Items [Line Items] |  |
Beginning Balance | 806,397 | 705,064
Interest | 65,664 | 60,383
Difference from changes | 3,945 | 40,950
Payments | (296,959) |
Ending Balance | $ 579,047 | $ 806,397

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