Equity-Accounted Investments And Other Long-Term Assets (Schedule Of Calculation Of Expected Loss On Disposal Of DNI On April 1, 2020) (Details) - USD ($) $ in Thousands		Apr. 01, 2020	Mar. 31, 2020	Jun. 30, 2019	[1],[2]
Long Lived Assets Held For Sale Line Items [Line Items]
Less: carrying value of DNI			$ 0	$ (149,390)
DNI [Member] | Asset Held-for-sale or Disposed of by Sale [Member] | Subsequent Event [Member] | Net1 SA [Member]
Long Lived Assets Held For Sale Line Items [Line Items]
Less: transaction costs		$ (1,006)
Less: carrying value of DNI		(36,508)
Less: release of foreign currency translation reserve from accumulated other comprehensive loss		(11,323)
Loss on sale of DNI before tax		(1,006)
Capital gains tax related to sale of DNI	[3]	0
Loss on disposal of DNI after tax		(1,006)
Utilized capital losses as a result of the disposal of remaining interest in DNI		12,000
DNI [Member] | Asset Held-for-sale or Disposed of by Sale [Member] | Cash [Member] | Subsequent Event [Member] | Net1 SA [Member]
Long Lived Assets Held For Sale Line Items [Line Items]
Consideration received		$ 42,481
Investment shares owned		26,886,310
DNI [Member] | Asset Held-for-sale or Disposed of by Sale [Member] | Notes Receivable [Member] | Subsequent Event [Member] | Net1 SA [Member]
Long Lived Assets Held For Sale Line Items [Line Items]
Consideration received		$ 5,350
Investment shares owned		3,508,455

[1] Derived from audited financial statements.

[2] Refer to Note 1

[3] Net1 SA recorded a valuation allowance related to capital losses previously generated but not utilized. The Company utilized approximately $12.0 million of these unutilized capital losses as a result of the disposal of its remaining interest in DNI in April 2020 and, therefore, the equivalent portion of the valuation allowance created was released.