Shareholders' Equity (Narrative) (Details) In Millions, unless otherwise specified	3 Months Ended
Sep. 30, 2012
Shareholders' Equity [Abstract]
Number of years over which shares may be repurchased	3 years
Stock repurchase program, remaining number of shares authorized	1.4

Period which shares may be purchased under a stock repurchase plan authorized by an entity's Board of Directors, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	us-gaap_StockRepurchaseProgramPeriodInForce1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration