Shareholders' Equity and Non-Controlling Interests (Warrants) (Details) - shares shares in Thousands		9 Months Ended
	Sep. 30, 2020	Sep. 22, 2020	Sep. 30, 2019
SVS
Class Of Warrant Or Right [Roll Forward]
Beginning balance (shares)		2,040	2,259
Granted (shares)		6,085	4
Expired (shares)		(4)	(223)
Modification pursuant to Amended Arrangement (shares)		(8,121)
Ending balance (shares)		0	2,040
Fixed Shares
Class Of Warrant Or Right [Roll Forward]
Beginning balance (shares)	5,684
Granted (shares)	0
Expired (shares)	0
Modification pursuant to Amended Arrangement (shares)	0
Ending balance (shares)	5,684
Floating Shares
Class Of Warrant Or Right [Roll Forward]
Beginning balance (shares)	2,436
Granted (shares)	0
Expired (shares)	0
Modification pursuant to Amended Arrangement (shares)	0
Ending balance (shares)	2,436