Description Of Business And Basis Of Presentation (Impact Of Restatement On Balance Sheet) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019		Jun. 30, 2018	Jun. 30, 2017
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Equity-accounted investments	$ 65,836		$ 148,427	[1]
Total assets	453,678		670,247	[1]
Deferred tax liabilities	1,859		1,324	[1]
Total liabilities	78,486		245,233	[1]
Accumulated other comprehensive loss	(169,075)	$ (169,075)	(195,812)	[1]	$ (184,350)	$ (162,736)
Retained earnings	444,670		523,028	[1]
Total equity	$ 290,213		317,342	[1]	$ 734,926	$ 598,840
Discontinued Operations [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Equity-accounted investments			148,427
Total assets			670,247
Deferred tax liabilities			1,324
Total liabilities			245,233
Accumulated other comprehensive loss			(195,812)
Retained earnings			523,028
Total equity			317,342
Discontinued Operations [Member] | As Reported [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Equity-accounted investments			151,116
Total assets			672,936
Deferred tax liabilities			1,926
Total liabilities			245,835
Accumulated other comprehensive loss			(199,273)
Retained earnings			528,576
Total equity			319,429
Discontinued Operations [Member] | Correction | DNI [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Equity-accounted investments			0
Total assets			0
Deferred tax liabilities			0
Total liabilities			0
Accumulated other comprehensive loss			3,227
Retained earnings			(3,227)
Total equity			0
Discontinued Operations [Member] | Correction | Finbond [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Equity-accounted investments			(2,689)
Total assets			(2,689)
Deferred tax liabilities			(602)
Total liabilities			(602)
Accumulated other comprehensive loss			234
Retained earnings			(2,321)
Total equity			$ (2,087)

[1] Refer to Note 1