Due to Shareholders of Acquired Companies - Additional Information (Details) € in Thousands, BRL in Thousands, $ in Thousands			3 Months Ended		6 Months Ended
	Sep. 12, 2017 USD ($)	Sep. 12, 2017 BRL	Jun. 30, 2017 USD ($)	Jun. 30, 2017 EUR (€)	Jun. 30, 2017 tranche	Sep. 30, 2017 USD ($)	Sep. 30, 2017 EUR (€)	Dec. 31, 2016 USD ($)	Sep. 12, 2014 BRL
Business Acquisition [Line Items]
Promissory notes payable						$ 81,175		$ 210,948
IADE Group
Business Acquisition [Line Items]
Number of payment tranches (tranche) | tranche					2
Payment tranche, value | €							€ 1,000
Payment term for tranche one					36 months
Payment term for tranche two					60 months
Promissory notes payable						2,358		2,755
Faculdades Metropolitanas Unidas Educacionais (FMU)
Business Acquisition [Line Items]
Promissory notes payable						$ 0		$ 100,382	BRL 250,000
Notes Payable | IADE Group
Business Acquisition [Line Items]
Liability settled			$ 694	€ 639
Notes Payable | Faculdades Metropolitanas Unidas Educacionais (FMU)
Business Acquisition [Line Items]
Liability settled	$ 114,578	BRL 358,606