Shareholders' Equity (Narrative) (Details) - $ / shares	1 Months Ended
Jun. 30, 2017	Jun. 30, 2016
Class of Stock [Line Items]
Cash Dividend Annual Rate Per Share	$ 3.00	$ 2.50

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.

No definition available.

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