XML 107 R62.htm IDEA: XBRL DOCUMENT v3.20.1
Property, plant and equipment (Schedule of Cost of Investment Property, Plant and Equipment) (Details) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year $ 16,970,832 $ 15,737,081
Balance at end of year 16,737,595 16,970,832
Land [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 1,217,000 1,094,000
Balance at end of year 1,291,000 1,217,000
Buildings [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 3,625,000 3,743,000
Balance at end of year 4,056,000 3,625,000
Machinery and equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 7,187,000 7,331,000
Balance at end of year 6,489,000 7,187,000
Transportation equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 78,000 78,000
Balance at end of year 76,000 78,000
Furniture, mixtures and computer Equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 64,000 57,000
Balance at end of year 64,000 64,000
Constructions and machinery in-progress [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 4,800,000 3,434,000
Balance at end of year 4,761,000 4,800,000
Cost [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 36,562,000 34,396,000
Additions 1,271,000 2,914,000
Translation adjustments (805,000) (748,000)
Balance at end of year 37,028,000 36,562,000
Cost [Member] | Land [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 1,217,000 1,094,000
Additions 89,000 137,000
Translation adjustments (15,000) (14,000)
Balance at end of year 1,291,000 1,217,000
Cost [Member] | Buildings [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 4,680,000 4,776,000
Additions 591,000 90,000
Translation adjustments (133,000) (186,000)
Balance at end of year 5,138,000 4,680,000
Cost [Member] | Machinery and equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 25,567,000 24,805,000
Additions 532,000 1,305,000
Translation adjustments (563,000) (543,000)
Balance at end of year 25,536,000 25,567,000
Cost [Member] | Transportation equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 159,000 158,000
Additions 2,000 1,000
Translation adjustments 0  
Balance at end of year 161,000 159,000
Cost [Member] | Furniture, mixtures and computer Equipment [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 139,000 129,000
Additions 4,000 11,000
Translation adjustments (2,000) (1,000)
Balance at end of year 141,000 139,000
Cost [Member] | Constructions and machinery in-progress [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 4,800,000 3,434,000
Additions 53,000 1,370,000
Translation adjustments (92,000) (4,000)
Balance at end of year $ 4,761,000 $ 4,800,000