Held-to-maturity Securities, Adjustments for Fair Value Calculation [Abstract]

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Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 825
-Section 50
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The amount of cash, securities, or other assets held by a third-party trustee pursuant to the terms of an agreement which assets are available to be used by beneficiaries to that agreement only within the specific terms thereof and which agreement is expected to terminate within one year of the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited.

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The amount of cash, securities, or other assets held by a third-party trustee pursuant to the terms of an agreement which assets are available to be used by beneficiaries to that agreement only within the specific terms thereof and which agreement is expected to terminate more than one year from the balance sheet date (or operating cycle, if longer) at which time the assets held-in-trust will be released or forfeited.

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Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

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Amount of unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of investment in debt security measured at amortized cost (held-to-maturity).

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Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).

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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity).

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next fiscal year through fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next fiscal year through fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Amount of investment in debt security measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing in next fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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This item represents the amount that could be realized under a life insurance contract or contracts owned by the Entity as of the date of the statement of financial position. Such Entity-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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Amount of noncurrent assets that are pledged or subject to withdrawal restrictions, classified as other.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The noncurrent cash, cash equivalents and investments that is restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits classified as long-term; that is not expected to be released from such existing restrictions within one year of the balance sheet date or operating cycle, whichever is longer. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. Includes noncurrent cash equivalents and investments that are similarly restricted as to withdrawal, usage or disposal.

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RESTRICTED CASH AND INVESTMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019	Dec. 29, 2019
Restricted Cash and Investments [Line Items]
Cash collateral held by insurance carriers	$ 24,308		$ 24,308		$ 24,612
Cash and cash equivalents held in Trust	21,922		21,922		23,681
Investments held in Trust	143,731		143,731		149,373
Deferred compensation investments	11,981		11,981		13,670
Company owned life insurance policies	12,343		12,343		13,126
Other restricted cash and cash equivalents	3,559		3,559		6,470
Restricted cash and investments	217,844		217,844		230,932
Amortized cost of held-to-maturity investments	143,731		143,731		149,373
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]
Gross unrealized gains	6,325		6,325		3,394
Gross unrealized losses	(1)		(1)		(36)
Fair value	150,055		150,055		152,731
Held-to-maturity securities, fair value [Abstract]
Fair value	150,055		150,055		152,731
Unrealized loss			(1,700)
Unrealized gain	3,100	$ 800		$ 3,200
Municipal debt securities
Restricted Cash and Investments [Line Items]
Amortized cost of held-to-maturity investments	71,117		71,117		72,017
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]
Gross unrealized gains	3,411		3,411		2,219
Gross unrealized losses	0		0		0
Fair value	74,528		74,528		74,236
Held-to-maturity securities, fair value [Abstract]
Fair value	74,528		74,528		74,236
Corporate debt securities
Restricted Cash and Investments [Line Items]
Amortized cost of held-to-maturity investments	70,717		70,717		75,000
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]
Gross unrealized gains	2,746		2,746		1,102
Gross unrealized losses	(1)		(1)		(34)
Fair value	73,462		73,462		76,068
Held-to-maturity securities, fair value [Abstract]
Fair value	73,462		73,462		76,068
Agency mortgage-backed securities
Restricted Cash and Investments [Line Items]
Amortized cost of held-to-maturity investments	897		897		1,357
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]
Gross unrealized gains	34		34		21
Gross unrealized losses	0		0		(2)
Fair value	931		931		1,376
Held-to-maturity securities, fair value [Abstract]
Fair value	931		931		1,376
U.S. government and agency securities
Restricted Cash and Investments [Line Items]
Amortized cost of held-to-maturity investments	1,000		1,000		999
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]
Gross unrealized gains	134		134		52
Gross unrealized losses	0		0		0
Fair value	1,134		1,134		1,051
Held-to-maturity securities, fair value [Abstract]
Fair value	1,134		1,134		$ 1,051
Restricted cash and investments
Restricted Cash and Investments [Line Items]
Amortized cost of held-to-maturity investments	143,731		143,731
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract]
Fair value	150,055		150,055
Held-to-maturity securities, amortized cost [Abstract]
Due in one year or less	25,297		25,297
Due after one year through five years	90,729		90,729
Due after five years through ten years	27,705		27,705
Held-to-maturity securities, fair value [Abstract]
Due in one year or less	25,545		25,545
Due after one year through five years	94,717		94,717
Due after five years through ten years	29,793		29,793
Fair value	$ 150,055		$ 150,055