RESTRICTED CASH AND INVESTMENTS (Tables)

12 Months Ended

Dec. 27, 2013

Restricted Cash and Investments [Abstract]

Schedule of restricted cash and investments

The following is a summary of restricted cash and investments (in millions):

	December 27, 2013		December 28, 2012
Cash collateral held by insurance carriers	$	23.7	$	21.5
Cash and cash equivalents held in Trust (1)	31.5		14.8
Investments held in Trust	86.7		91.2
Cash collateral backing letters of credit	1.9		1.8
Other (2)	10.8		7.0
Total restricted cash and investments	$	154.6	$	136.3

(1) Included in this amount is $0.8 million and $0.9 million of accrued interest at December 27, 2013 and December 28, 2012, respectively.

(2) Primarily consists of restricted cash in money market accounts and deferred compensation plan accounts which are comprised of mutual funds.

Schedule of held-to-maturity investments

The following tables present fair value disclosures for our held-to-maturity investments, which are carried at amortized cost (in millions):

	December 27, 2013
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Municipal debt securities	$	54.1	$	0.7	$	(0.4	)	$	54.4
Corporate debt securities	19.7		0.2		(0.3		)	19.6
Asset-backed securities	12.9		0.1		(0.1		)	12.9
	$	86.7	$	1.0	$	(0.8	)	$	86.9

	December 28, 2012
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Municipal debt securities	$	57.3	$	1.0	$	(0.1	)	$	58.2
Corporate debt securities	17.9		0.3		—			18.2
Asset-backed securities	16.0		0.3		—			16.3
	$	91.2	$	1.6	$	(0.1	)	$	92.7

Schedule of held-to-maturity investments by contractual maturity

The amortized cost and fair value by contractual maturity of our available-for-sale investments are as follows (in millions):

	December 27, 2013
	Amortized Cost		Fair Value
Due in one year or less (1)	$	14.8	$	14.7
Due after one year (2)	6.0		6.0
	$	20.8	$	20.7

The amortized cost and fair value by contractual maturity of our held-to-maturity investments are as follows (in millions):

	December 27, 2013
	Amortized Cost		Fair Value
Due in one year or less	$	10.2	$	10.2
Due after one year through five years	42.1		42.8
Due after five years through ten years	34.4		33.9
	$	86.7	$	86.9