Revenue - Schedule of Components (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 528,557	$ 601,072
Percent of net revenues	100.00%	100.00%
Tuition and educational services
Disaggregation of Revenue [Line Items]
Revenue	$ 629,509	$ 719,098
Percent of net revenues	119.00%	120.00%
Other
Disaggregation of Revenue [Line Items]
Revenue	$ 55,528	$ 58,712
Percent of net revenues	11.00%	9.00%
Gross revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 685,037	$ 777,810
Percent of net revenues	130.00%	129.00%
Less: Discounts / waivers / scholarships
Disaggregation of Revenue [Line Items]
Revenue	$ 156,480	$ 176,738
Percent of net revenues	(30.00%)	(29.00%)
Operating Segments | Brazil
Disaggregation of Revenue [Line Items]
Revenue	$ 83,681	$ 109,969
Operating Segments | Brazil | Tuition and educational services
Disaggregation of Revenue [Line Items]
Revenue	155,144	201,254
Operating Segments | Brazil | Other
Disaggregation of Revenue [Line Items]
Revenue	1,983	1,925
Operating Segments | Brazil | Gross revenue
Disaggregation of Revenue [Line Items]
Revenue	157,127	203,179
Operating Segments | Brazil | Less: Discounts / waivers / scholarships
Disaggregation of Revenue [Line Items]
Revenue	73,446	93,210
Operating Segments | Mexico
Disaggregation of Revenue [Line Items]
Revenue	154,207	156,464
Operating Segments | Mexico | Tuition and educational services
Disaggregation of Revenue [Line Items]
Revenue	164,165	164,802
Operating Segments | Mexico | Other
Disaggregation of Revenue [Line Items]
Revenue	27,216	26,496
Operating Segments | Mexico | Gross revenue
Disaggregation of Revenue [Line Items]
Revenue	191,381	191,298
Operating Segments | Mexico | Less: Discounts / waivers / scholarships
Disaggregation of Revenue [Line Items]
Revenue	37,174	34,834
Operating Segments | Andean
Disaggregation of Revenue [Line Items]
Revenue	89,508	138,942
Operating Segments | Andean | Tuition and educational services
Disaggregation of Revenue [Line Items]
Revenue	89,260	137,403
Operating Segments | Andean | Other
Disaggregation of Revenue [Line Items]
Revenue	11,693	15,847
Operating Segments | Andean | Gross revenue
Disaggregation of Revenue [Line Items]
Revenue	100,953	153,250
Operating Segments | Andean | Less: Discounts / waivers / scholarships
Disaggregation of Revenue [Line Items]
Revenue	11,445	14,308
Operating Segments | Rest of World
Disaggregation of Revenue [Line Items]
Revenue	43,576	33,432
Operating Segments | Rest of World | Tuition and educational services
Disaggregation of Revenue [Line Items]
Revenue	46,581	34,589
Operating Segments | Rest of World | Other
Disaggregation of Revenue [Line Items]
Revenue	1,770	1,945
Operating Segments | Rest of World | Gross revenue
Disaggregation of Revenue [Line Items]
Revenue	48,351	36,534
Operating Segments | Rest of World | Less: Discounts / waivers / scholarships
Disaggregation of Revenue [Line Items]
Revenue	4,775	3,102
Operating Segments | Online & Partnerships
Disaggregation of Revenue [Line Items]
Revenue	156,505	161,774
Operating Segments | Online & Partnerships | Tuition and educational services
Disaggregation of Revenue [Line Items]
Revenue	174,359	181,050
Operating Segments | Online & Partnerships | Other
Disaggregation of Revenue [Line Items]
Revenue	11,786	12,008
Operating Segments | Online & Partnerships | Gross revenue
Disaggregation of Revenue [Line Items]
Revenue	186,145	193,058
Operating Segments | Online & Partnerships | Less: Discounts / waivers / scholarships
Disaggregation of Revenue [Line Items]
Revenue	29,640	31,284
Corporate
Disaggregation of Revenue [Line Items]
Revenue	1,080	491
Corporate | Tuition and educational services
Disaggregation of Revenue [Line Items]
Revenue	0	0
Corporate | Other
Disaggregation of Revenue [Line Items]
Revenue	1,080	491
Corporate | Gross revenue
Disaggregation of Revenue [Line Items]
Revenue	1,080	491
Corporate | Less: Discounts / waivers / scholarships
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 0