Investments (Tables)

3 Months Ended

Mar. 30, 2013

Investments, Debt and Equity Securities [Abstract]

Available For Sale Securities

Following is a summary of AFS securities as of March 30, 2013 and December 29, 2012:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(Amounts are in thousands)
March 30, 2013
Tax exempt bonds	$	3,361,235		35,608		2,328	3,394,515
Taxable bonds	1,373,007			15,628		561	1,388,074
Restricted investments	170,000			604		—	170,604
Equity securities	573,144			105,423		7,104	671,463
	$	5,477,386		157,263		9,993	5,624,656
December 29, 2012
Tax exempt bonds	$	3,115,963		33,787		2,646	3,147,104
Taxable bonds	1,141,514			17,667		355	1,158,826
Restricted investments	170,000			431		—	170,431
Equity securities	510,613			58,631		12,499	556,745
	$	4,938,090		110,516		15,500	5,033,106

Amortized Cost and Fair Value of Available For Sale Securities by Expected Maturity

The amortized cost and fair value of AFS securities by expected maturity as of March 30, 2013 and December 29, 2012 are as follows:

	March 30, 2013			December 29, 2012
	Amortized Cost		Fair Value	Amortized Cost	Fair Value
	(Amounts are in thousands)
Due in one year or less	$	887,725	892,094	792,946	797,260
Due after one year through five years	3,159,145		3,191,548	2,725,036	2,755,043
Due after five years through ten years	474,711		479,469	520,800	526,924
Due after ten years	212,661		219,478	218,695	226,703
	4,734,242		4,782,589	4,257,477	4,305,930
Restricted investments	170,000		170,604	170,000	170,431
Equity securities	573,144		671,463	510,613	556,745
	$	5,477,386	5,624,656	4,938,090	5,033,106

Temporarily Impaired Available For Sale Securities by Time Period Impaired

	March 30, 2013			December 29, 2012
	Amortized Cost		Fair Value	Amortized Cost	Fair Value
	(Amounts are in thousands)
Due in one year or less	$	887,725	892,094	792,946	797,260
Due after one year through five years	3,159,145		3,191,548	2,725,036	2,755,043
Due after five years through ten years	474,711		479,469	520,800	526,924
Due after ten years	212,661		219,478	218,695	226,703
	4,734,242		4,782,589	4,257,477	4,305,930
Restricted investments	170,000		170,604	170,000	170,431
Equity securities	573,144		671,463	510,613	556,745
	$	5,477,386	5,624,656	4,938,090	5,033,106

Following is a summary of temporarily impaired AFS securities by the time period impaired as of March 30, 2013 and December 29, 2012:

	Less Than 12 Months				12 Months or Longer			Total
	Fair Value		Unrealized Losses		Fair Value	Unrealized Losses		Fair Value	Unrealized Losses
	(Amounts are in thousands)
March 30, 2013
Tax exempt bonds	$	323,493		2,328	—		—	323,493		2,328
Taxable bonds	243,368			561	—		—	243,368		561
Equity securities	55,763			3,915	9,117		3,189	64,880		7,104
Total temporarily impaired AFS securities	$	622,624		6,804	9,117		3,189	631,741		9,993
December 29, 2012
Tax exempt bonds	$	566,914		2,646	—		—	566,914		2,646
Taxable bonds	81,876			355	—		—	81,876		355
Equity securities	209,759			8,878	14,260		3,621	224,019		12,499
Total temporarily impaired AFS securities	$	858,549		11,879	14,260		3,621	872,809		15,500