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RESTRICTED CASH AND INVESTMENTS (Tables)
 12 Months Ended
Jan. 01, 2017
Restricted Cash and Investments [Abstract]  
Schedule of restricted cash and investments
The following is a summary of our restricted cash and investments (in thousands):
 
January 1,
2017
 
December 25,
2015
Cash collateral held by insurance carriers
$
34,910

 
$
23,634

Cash and cash equivalents held in Trust
32,841

 
26,046

Investments held in Trust
146,517

 
126,788

Other (1)
16,925

 
11,944

Total restricted cash and investments
$
231,193

 
$
188,412


(1)
Primarily consists of deferred compensation plan accounts, which are comprised of mutual funds classified as available-for-sale securities.
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):
 
January 1, 2017
 
Amortized Cost
 
Gross Unrealized Gain
 
Gross Unrealized Loss
 
Fair Value
Municipal debt securities
$
71,618

 
$
443

 
$
(865
)
 
$
71,196

Corporate debt securities
68,934

 
212

 
(352
)
 
68,794

Agency mortgage-backed securities
5,965

 
30

 
(32
)
 
5,963

 
$
146,517

 
$
685

 
$
(1,249
)
 
$
145,953

 
December 25, 2015
 
Amortized Cost
 
Gross Unrealized Gain
 
Gross Unrealized Loss
 
Fair Value
Municipal debt securities
$
67,948

 
$
1,345

 
$
(4
)
 
$
69,289

Corporate debt securities
50,462

 
226

 
(152
)
 
50,536

Agency mortgage-backed securities
8,378

 
73

 
(31
)
 
8,420

 
$
126,788

 
$
1,644

 
$
(187
)
 
$
128,245
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):
 
January 1, 2017
 
Amortized Cost
 
Fair Value
Due in one year or less
$
15,640

 
$
15,666

Due after one year through five years
73,973

 
73,941

Due after five years through ten years
56,904

 
56,346

 
$
146,517

 
$
145,953