Equity (Rollforward of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Loss [Line Items]
Accumulated other comprehensive loss, beginning balance	$ (60,494)	$ (63,712)	$ (65,814)
Unrealized (losses) gains, net of tax	(15,212)	3,218	2,102
Accumulated other comprehensive loss, ending balance	(75,706)	(60,494)	(63,712)
Foreign Currency [Member]
Accumulated Other Comprehensive Loss [Line Items]
Accumulated other comprehensive loss, beginning balance	(65,496)	(62,851)	(64,478)
Unrealized (losses) gains, net of tax	(189)	(2,645)	1,627
Accumulated other comprehensive loss, ending balance	(65,685)	(65,496)	(62,851)
Other [Member]
Accumulated Other Comprehensive Loss [Line Items]
Accumulated other comprehensive loss, beginning balance	5,002	(861)	(1,336)
Unrealized (losses) gains, net of tax	(15,023)	5,863	475
Accumulated other comprehensive loss, ending balance	$ (10,021)	$ 5,002	$ (861)