Machinery, equipment and improvements on leased assets (Tables)

12 Months Ended

Dec. 31, 2019

As of December 31, 2017, 2018 and 2019, the machinery, equipment and improvements on leased assets are comprised as follows:

	Balance as of January 1, 2017			Additions			Divestitures			Currency translation effect			Balance as of December 31, 2017
Investment:
Machinery and equipment	Ps.	2,181,305		Ps.	175,457		Ps.	(49,970	)	Ps.	(37,872	)	Ps.	2,268,920
Office furniture and equipment		208,676			40,958			(6,427	)		(2,309	)		240,898
Computer equipment		596,652			136,915			(12,751	)		(10,232	)		710,584
Transportation equipment		42,037			6,650			(1,220	)		(399	)		47,068
Communication equipment		28,224			2,386			(178	)		—			30,432
Improvements on leased assets		41,458			30,140			—			—			71,598
Total investment		3,098,352			392,506			(70,546	)		(50,812	)		3,369,500
Accumulated depreciation:
Machinery and equipment		(926,836	)		(195,382	)		33,308			17,339			(1,071,571	)
Office furniture and equipment		(108,053	)		(16,363	)		5,641			1,682			(117,093	)
Computer equipment		(377,033	)		(101,207	)		11,373			7,354			(459,513	)
Transportation equipment		(30,374	)		(5,960	)		1,220			556			(34,558	)
Communication equipment		(14,281	)		(2,629	)		134			—			(16,776	)
Improvements on leased assets		(11,382	)		(2,919	)		—			—			(14,301	)
Total accumulated depreciation		(1,467,959	)		(324,460	)		51,676			26,931			(1,713,812	)
Net amounts	Ps.	1,630,393		Ps.	68,046		Ps.	(18,870	)	Ps.	(23,881	)	Ps.	1,655,688

	Balance as of January 1, 2018			Additions			Divestitures			Currency translation effect			Balance as of December 31, 2018
Investment:
Machinery and equipment	Ps.	2,268,920		Ps.	444,495		Ps.	(62,642	)	Ps.	15,759		Ps.	2,666,532
Office furniture and equipment		240,898			61,414			(1,455	)		469			301,326
Computer equipment		710,584			107,381			(9,104	)		5,602			814,463
Transportation equipment		47,068			13,537			(3,072	)		562			58,095
Communication equipment		30,432			1,633			(911	)		—			31,154
Improvements on leased assets		71,598			3,995			(4,010	)		—			71,583
Total investment		3,369,500			632,455			(81,194	)		22,392			3,943,153
Accumulated depreciation:
Machinery and equipment		(1,071,571	)		(221,674	)		55,770			(2,229	)		(1,239,704	)
Office furniture and equipment		(117,093	)		(20,839	)		1,864			(197	)		(136,265	)
Computer equipment		(459,513	)		(135,272	)		9,054			(305	)		(586,036	)
Transportation equipment		(34,558	)		(8,177	)		3,066			(190	)		(39,859	)
Communication equipment		(16,776	)		(2,354	)		786			—			(18,344	)
Improvements on leased assets		(14,301	)		(3,328	)		917			—			(16,712	)
Total accumulated depreciation		(1,713,812	)		(391,644	)		71,457			(2,921	)		(2,036,920	)
Net amounts	Ps.	1,655,688		Ps.	240,811		Ps.	(9,737	)	Ps.	19,471		Ps.	1,906,233

	Balance as of January 1, 2019			Additions			Divestitures			Currency translation effect			Balance as of December 31, 2019
Investment:
Machinery and equipment	Ps.	2,666,532		Ps.	224,218		Ps.	(39,546	)	Ps.	(12,481	)	Ps.	2,838,723
Office furniture and equipment		301,326			60,415			(12,209	)		(1,965	)		347,567
Computer equipment		814,463			133,162			(30,576	)		(6,301	)		910,748
Transportation equipment		58,095			17,585			(1,178	)		(785	)		73,717
Communication equipment		31,154			1,261			(2,823	)		—			29,592
Improvements on leased assets		71,583			764			—			—			72,347
Total investment		3,943,153			437,405			(86,332	)		(21,532	)		4,272,694
Accumulated depreciation:
Machinery and equipment		(1,239,704	)		(260,223	)		37,221			17,968			(1,444,738	)
Office furniture and equipment		(136,265	)		(26,821	)		11,059			1,388			(150,639	)
Computer equipment		(586,036	)		(136,589	)		26,949			10,912			(684,764	)
Transportation equipment		(39,859	)		(10,210	)		1,023			387			(48,659	)
Communication equipment		(18,344	)		(2,274	)		2,663			—			(17,955	)
Improvements on leased assets		(16,712	)		(3,543	)		—			—			(20,255	)
Total accumulated depreciation		(2,036,920	)		(439,660	)		78,915			30,655			(2,367,010	)
Net amounts	Ps.	1,906,233		Ps.	(2,255	)	Ps.	(7,417	)	Ps.	9,123		Ps.	1,905,684

As of December 31, 2017, 2018 and 2019, the net balances of machinery, equipment and improvements on leased assets are:

	December 31, 2017		December 31, 2018		December 31, 2019
Net amounts:
Machinery and equipment	Ps.	1,197,349	Ps.	1,426,828	Ps.	1,393,985
Office furniture and equipment		123,805		165,061		196,928
Computer equipment		251,071		228,427		225,984
Transportation equipment		12,510		18,236		25,058
Communication equipment		13,656		12,810		11,637
Improvements on leased assets	57,297			54,871		52,092
Total amounts	Ps.	1,655,688	Ps.	1,906,233	Ps.	1,905,684