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RESTRICTED CASH AND INVESTMENTS (Tables)
 9 Months Ended
Oct. 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)
October 1,
2017
January 1,
2017
Cash collateral held by insurance carriers
$
29,122

$
34,910

Cash and cash equivalents held in Trust
30,666

32,841

Investments held in Trust
163,270

146,517

Other (1)
21,115

16,925

Total restricted cash and investments
$
244,173

$
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:
 
October 1, 2017
(in thousands)
Amortized Cost
Gross Unrealized Gain
Gross Unrealized Loss
Fair Value
Municipal debt securities
$
76,373

$
1,561

$
(233
)
$
77,701

Corporate debt securities
81,395

572

(166
)
81,801

Agency mortgage-backed securities
4,502

36

(13
)
4,525

U.S. government and agency securities
1,000

26

—

1,026

 
$
163,270

$
2,195

$
(412
)
$
165,053

 
January 1, 2017
 (in thousands)
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:
 
October 1, 2017
 (in thousands)
Amortized Cost
Fair Value
Due in one year or less
$
16,796

$
16,816

Due after one year through five years
83,156

83,764

Due after five years through ten years
63,318

64,473

 
$
163,270

$
165,053