Segment Information Balance Sheet Data (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents	$ 86,912	$ 90,387	$ 74,067	$ 80,472
Property and equipment, net	4,664,837	4,613,014
North American Operations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents	37,261	33,996
Property and equipment, net	3,747,047	3,679,279
Australia Operations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents	31,142	26,902
Property and equipment, net	587,793	609,450
U.K./European Operations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents	18,509	29,489
Property and equipment, net	$ 329,997	$ 324,285