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RESTRICTED CASH AND INVESTMENTS (Tables)
 6 Months Ended
Jul. 02, 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):
 
July 2,
2017
 
January 1,
2017
Cash collateral held by insurance carriers
$
28,737

 
$
34,910

Cash and cash equivalents held in Trust
30,579

 
32,841

Investments held in Trust
150,724

 
146,517

Other (1)
19,891

 
16,925

Total restricted cash and investments
$
229,931

 
$
231,193


(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):
 
July 2, 2017
 
Amortized Cost
 
Gross Unrealized Gain
 
Gross Unrealized Loss
 
Fair Value
Municipal debt securities
$
77,573

 
$
1,583

 
$
(297
)
 
$
78,859

Corporate debt securities
67,204

 
474

 
(158
)
 
67,520

Agency mortgage-backed securities
4,948

 
38

 
(18
)
 
4,968

U.S. government and agency securities
999

 
24

 
—

 
1,023

 
$
150,724

 
$
2,119

 
$
(473
)
 
$
152,370

 
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
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):
 
July 2, 2017
 
Amortized Cost
 
Fair Value
Due in one year or less
$
14,581

 
$
14,597

Due after one year through five years
72,477

 
73,070

Due after five years through ten years
63,666

 
64,703

 
$
150,724

 
$
152,370