Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2011

Accumulated Other Comprehensive Income [Abstract]

Summary Of Accumulated Other Comprehensive Income, Net Of Taxes

	2011			2010			2009
Net unrealized gains on investments	$	998,151		$	1,749,757		$	1,034,164
Net unrealized foreign exchange gains (losses)		(3,168	)		(3,838	)		4,024
Net unrealized gains on derivative instruments		–			–			1,005
Net minimum pension liability		(83,537	)		(60,177	)		(56,948	)
Net postretirement benefit		975			1,621			2,787
	$	912,421		$	1,687,363		$	985,032