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RESTRICTED CASH AND INVESTMENTS (Tables)
 12 Months Ended
Dec. 26, 2014
Restricted Cash and Investments [Abstract]  
Schedule of restricted cash and investments
The following is a summary our Restricted cash and investments (in thousands):
 
December 26,
2014
 
December 27,
2013
Cash collateral held by insurance carriers
$
22,639

 
$
23,747

Cash and cash equivalents held in Trust (1)
43,856

 
31,474

Investments held in Trust
90,095

 
86,678

Cash collateral backing letters of credit
1,864

 
1,864

Other (2)
9,972

 
10,795

Total restricted cash and investments
$
168,426

 
$
154,558


(1)
Includes $0.7 million and $0.8 million of accrued interest at December 26, 2014 and December 27, 2013, respectively.
(2)
Primarily consists of 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 thousands):
 
December 26, 2014
 
Amortized Cost
 
Gross Unrealized Gain
 
Gross Unrealized Loss
 
Fair Value
Municipal debt securities
$
52,406

 
$
882

 
$
(92
)
 
$
53,196

Corporate debt securities
27,715

 
179

 
(144
)
 
27,750

Asset-backed securities
9,974

 
157

 
(11
)
 
10,120

 
$
90,095

 
$
1,218

 
$
(247
)
 
$
91,066

 
December 27, 2013
 
Amortized Cost
 
Gross Unrealized Gain
 
Gross Unrealized Loss
 
Fair Value
Municipal debt securities
$
54,133

 
$
722

 
$
(398
)
 
$
54,457

Corporate debt securities
19,694

 
180

 
(294
)
 
19,580

Asset-backed securities
12,851

 
141

 
(89
)
 
12,903

 
$
86,678

 
$
1,043

 
$
(781
)
 
$
86,940
Schedule of held-to-maturity investments by contractual maturity
The amortized cost and fair value by contractual maturity of our held-to-maturity investments are as follows (in thousands):
 
December 26, 2014
 
Amortized Cost
 
Fair Value
Due in one year or less
$
10,236

 
$
10,281

Due after one year through five years
41,174

 
41,511

Due after five years through ten years
38,685

 
39,274

 
$
90,095

 
$
91,066