Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Name:	us-gaap_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Disposal Of Controlling Interest In FIHRST And KSNET (Narrative) (Details) - USD ($) $ in Thousands	Jan. 23, 2020	Dec. 01, 2019
FIHRST [Member]
Business Acquisition [Line Items]
Consideration amount from disposal of discontunued operation		$ 11,749
KSNET [Member] \| Subsequent Event [Member]
Business Acquisition [Line Items]
Consideration amount from disposal of discontunued operation	$ 237,500