Commitments and Contingent Liabilities (Broadcast Rights) (Details) (USD $)	Jun. 30, 2012
Unavailable broadcast rights
Fair value of unavailable broadcast rights	$ 12,600,000
Broadcast Rights [Member]
Recorded broadcast rights commitments
Broadcast rights payments due: 2013	6,752,000
Broadcast rights payments due: 2014	3,133,000
Broadcast rights payments due: 2015	525,000
Broadcast rights payments due: 2016	22,000
Broadcast rights payments due: 2017	14,000
Broadcast rights payments due: Later years	1,000
Total amounts payable	10,447,000
Unavailable broadcast rights
Unavailable broadcast rights payments due: 2013	5,285,000
Unavailable broadcast rights payments due: 2014	5,514,000
Unavailable broadcast rights payments due: 2015	1,209,000
Unavailable broadcast rights payments due: 2016	337,000
Unavailable broadcast rights payments due: 2017	307,000
Unavailable broadcast rights payments due: Later years	535,000
Unavailable broadcast rights	$ 13,187,000

Unavailable Broadcast Rights Payable, Fair Value Disclosure

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