Segment Information Balance Sheet Data (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($) segment	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Operating Segments | segment	2
Total Assets	$ 7,002,978	$ 6,577,511
Experiential Reportable Operating Segment [Member]
Segment Reporting Information [Line Items]
Total Assets	5,253,239	5,307,295
Education Reportable Operating Segment [Member]
Segment Reporting Information [Line Items]
Total Assets	721,098	730,165
Corporate / Unallocated
Segment Reporting Information [Line Items]
Total Assets	$ 1,028,641	$ 540,051