Discontinued Operations (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended			3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2013 Daily Herald [Member]	Jun. 30, 2014 Sale of Publishing Subsidiaries [Member]	Dec. 31, 2013 Sale of Publishing Subsidiaries [Member]	Jun. 30, 2014 Berkshire Exchange Transaction [Member]	Jun. 30, 2014 Berkshire Exchange Transaction [Member] Common Class A [Member] Berkshire Hathaway Inc [Member]	Jun. 30, 2014 Berkshire Exchange Transaction [Member] Common Class B [Member]	Jun. 30, 2014 Berkshire Exchange Transaction [Member] Common Class B [Member] Berkshire Hathaway Inc [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Berkshire Shares Exchanged									2,107		1,278
Amount of Cash Exchanged to Berkshire								$ 327,700,000
Number of shares received in Berkshire Hathaway agreement										1,620,190
After-tax gain (loss) on sale and/or disposition						(3,000,000)	100,000,000	375,038,000
Pre-tax gain (loss) on sale and/or disposition	358,964,000	0	354,227,000	(70,000)	(100,000)
Expenses in discontinued operations	12,568,000	154,598,000	22,701,000	322,675,000
Early retirement program expense			$ 4,490,000	$ 22,700,000