Discontinued Operations and Assets Held for Sale - Summary of Major Classes of Assets and Liabilities Reclassified to Held for Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets of Discontinued Operations
Subtotal: assets of Discontinued Operations	$ 681,025	$ 1,337,831
Liabilities of Discontinued Operations
Total liabilities held for sale	303,021	662,684
Discontinued operations
Assets of Discontinued Operations
Cash and cash equivalents	123,224	214,934
Receivables, net	35,947	38,588
Property and equipment, net	292,129	667,527
Goodwill	13,362	131,329
Tradenames	17,170	124,932
Operating lease right-of-use assets, net	69,951
Other assets	58,879	99,566
Subtotal: assets of Discontinued Operations	610,662	1,276,876
Liabilities of Discontinued Operations
Deferred revenue and student deposits	39,989	115,969
Operating leases, including current portion	75,542
Long-term debt and finance leases, including current portion	63,897	278,074
Other liabilities	96,093	253,397
Total liabilities held for sale	275,521	647,440
Assets classified as held for sale
Liabilities of Discontinued Operations
Deferred revenue and student deposits	546	469
Operating leases, including current portion	11,641
Long-term debt and finance leases, including current portion	2,486	5,370
Other liabilities	12,827	9,405
Total liabilities held for sale	27,500	15,244
UniNorte Brazil | Assets classified as held for sale
Assets of Discontinued Operations
Receivables, net	6,750	6,983
Property and equipment, net	14,366	16,726
Goodwill	15,379	15,165
Tradenames	8,261	8,146
Operating lease right-of-use assets, net	18,034
Other assets	7,573	13,935
Subtotal: assets of Discontinued Operations	$ 70,363	$ 60,955