PENSION AND OTHER POSTRETIREMENT BENEFITS (Tables)

3 Months Ended

Mar. 27, 2016

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of Defined Benefit Plan Obligations and Assets

The change in benefit obligation, change in fair value of plan assets, funded status and amounts recognized in the Condensed Consolidated Balance Sheets for these defined benefit plans were as follows:

	Thirteen Weeks Ended   March 27, 2016						Thirteen Weeks Ended   March 29, 2015
	Pension Benefits			Other Benefits			Pension Benefits			Other Benefits
Change in projected benefit obligation:	(In thousands)
Projected benefit obligation, beginning of period	$	165,952		$	1,672		$	190,401		$	1,657
Interest cost	1,396			12			1,938			17
Actuarial losses	4,417			51			6,915			38
Benefits paid	(2,365		)	(35		)	(1,479		)	(32		)
Curtailments and settlements	—			—			(11,945		)	—
Projected benefit obligation, end of period	$	169,400		$	1,700		$	185,830		$	1,680

	Thirteen Weeks Ended   March 27, 2016						Thirteen Weeks Ended   March 29, 2015
	Pension Benefits			Other Benefits			Pension Benefits			Other Benefits
Change in plan assets:	(In thousands)
Fair value of plan assets, beginning of period	$	96,947		$	—		$	113,552		$	—
Actual return on plan assets	(5,446		)	—			2,061			—
Contributions by employer	2,541			35			1,881			32
Benefits paid	(2,365		)	(35		)	(1,479		)	(32		)
Curtailments and settlements	—			—			(11,945		)	—
Fair value of plan assets, end of period	$	91,677		$	—		$	104,070		$	—

	March 27, 2016						December 27, 2015
	Pension Benefits			Other Benefits			Pension Benefits			Other Benefits
Funded status:	(In thousands)
Unfunded benefit obligation, end of period	$	(77,723	)	$	(1,700	)	$	(69,005	)	$	(1,672	)

	March 27, 2016						December 27, 2015
	Pension Benefits			Other Benefits			Pension Benefits			Other Benefits
Amounts recognized in the Condensed Consolidated Balance Sheets at end of period:	(In thousands)
Current liability	$	(10,774	)	$	(139	)	$	(10,779	)	$	(138	)
Long-term liability	(66,949		)	(1,561		)	(58,226		)	(1,534		)
Recognized liability	$	(77,723	)	$	(1,700	)	$	(69,005	)	$	(1,672	)

	March 27, 2016					December 27, 2015
	Pension Benefits		Other Benefits			Pension Benefits		Other Benefits
Amounts recognized in accumulated other comprehensive loss at end of period:	(In thousands)
Net actuarial loss (gain)	$	49,126	$	(28	)	$	38,115	$	(79	)

Schedule of Net Defined Benefit Pension and Other Postretirement Costs

Net defined benefit pension and other postretirement costs included the following components:

	Thirteen Weeks Ended March 27, 2016					Thirteen Weeks Ended March 29, 2015
	Pension Benefits			Other Benefits		Pension Benefits			Other Benefits
	(In thousands)
Interest cost	$	1,396		$	12	$	1,938		$	17
Estimated return on plan assets	(1,314		)	—		(1,671		)	—
Settlement loss	—			—		3,062			—
Amortization of net loss	165			—		179			—
Net costs	$	247		$	12	$	3,508		$	17

Schedule of Economic Assumptions

The weighted average assumptions used in determining pension and other postretirement plan information were as follows:

	March 27, 2016				December 27, 2015
	Pension Benefits		Other Benefits		Pension Benefits		Other Benefits
Assumptions used to measure benefit obligation at end of period:
Discount rate	4.18	%	3.55	%	4.47	%	4.47	%

	Thirteen Weeks Ended   March 27, 2016				Thirteen Weeks Ended   March 29, 2015
	Pension Benefits		Other Benefits		Pension Benefits		Other Benefits
Assumptions used to measure net pension and other postretirement cost:
Discount rate	4.47	%	4.47	%	4.22	%	4.22	%
Expected return on plan assets	5.50	%	NA		6.00	%	NA

Schedule of Plan Asset Allocations

The following table reflects the pension plans’ actual asset allocations:

	March 27, 2016		December 27, 2015
Cash and cash equivalents	—	%	—	%
Pooled separate accounts(a):
Equity securities	7	%	7	%
Fixed income securities	7	%	7	%
Common collective trust funds(a):
Equity securities	57	%	57	%
Fixed income securities	29	%	29	%
Total assets	100	%	100	%

(a) Pooled separate accounts (“PSAs”) and common collective trust funds (“CCTs”) are two of the most common types of alternative vehicles in which benefit plans invest. These investments are pooled funds that look like mutual funds, but they are not registered with the SEC. Often times, they will be invested in mutual funds or other marketable securities, but the unit price generally will be different from the value of the underlying securities because the fund may also hold cash for liquidity purposes, and the fees imposed by the fund are deducted from the fund value rather than charged separately to investors. Some PSAs and CCTs have no restrictions as to their investment strategy and can invest in riskier investments, such as derivatives, hedge funds, private equity funds, or similar investments.

Schedule of Fair Value Measurements of Plan Assets

The fair value measurements of plan assets fell into the following levels of the fair value hierarchy as of March 27, 2016 and December 27, 2015:

	March 27, 2016								December 27, 2015
	Level 1(a)		Level 2(b)		Level 3(c)		Total		Level 1(a)		Level 2(b)		Level 3(c)		Total
	(In thousands)
Cash and cash equivalents	$	126	$	—	$	—	$	126	$	147	$	—	$	—	$	147
Pooled separate accounts:
Large U.S. equity funds(d)	—		3,692		—		3,692		—		3,816		—		3,816
Small/Mid U.S. equity funds(e)	—		937		—		937		—		969		—		969
International equity funds(f)	—		1,498		—		1,498		—		1,606		—		1,606
Fixed income funds(g)	—		6,149		—		6,149		—		6,337		—		6,337
Common collective trusts funds:
Large U.S. equity funds(d)	—		21,657		—		21,657		—		22,069		—		22,069
Small U.S. equity funds(e)	—		15,392		—		15,392		—		16,843		—		16,843
International equity funds(f)	—		15,415		—		15,415		—		16,629		—		16,629
Fixed income funds(g)	—		26,811		—		26,811		—		28,531		—		28,531
Total assets	$	126	$	91,551	$	—	$	91,677	$	147	$	96,800	$	—	$	96,947

(a) Unadjusted quoted prices in active markets for identical assets are used to determine fair value.

(b) Quoted prices in active markets for similar assets and inputs that are observable for the asset are used to determine fair value.

(c) Unobservable inputs, such as discounted cash flow models or valuations, are used to determine fair value.

(d) This category is comprised of investment options that invest in stocks, or shares of ownership, in large, well-established U.S. companies. These investment options typically carry more risk than fixed income options but have the potential for higher returns over longer time periods.

(e) This category is generally comprised of investment options that invest in stocks, or shares of ownership, in small to medium-sized U.S. companies. These investment options typically carry more risk than larger U.S. equity investment options but have the potential for higher returns.

(f) This category is comprised of investment options that invest in stocks, or shares of ownership, in companies with their principal place of business or office outside of the U.S.

(g) This category is comprised of investment options that invest in bonds, or debt of a company or government entity (including U.S. and non-U.S. entities). It may also include real estate investment options that directly own property. These investment options typically carry more risk than short-term fixed income investment options (including, for real estate investment options, liquidity risk), but less overall risk than equities.

Schedule of Benefit Payments

The following table reflects the benefits as of March 27, 2016 expected to be paid through 2025 from our pension and other postretirement plans. Because our pension plans are primarily funded plans, the anticipated benefits with respect to these plans will come primarily from the trusts established for these plans. Because our other postretirement plans are unfunded, the anticipated benefits with respect to these plans will come from our own assets.

	Pension Benefits		Other Benefits
	(In thousands)
2016 (remaining)	$	10,653	$	104
2017	11,660		139
2018	11,406		140
2019	11,063		139
2020	11,075		138
2021-2025	49,795		643
Total	$	105,652	$	1,303

Schedule of Unrecognized Benefit Amounts

The amounts in accumulated other comprehensive loss that were not recognized as components of net periodic benefits cost and the changes in those amounts are as follows:

	Thirteen Weeks Ended   March 27, 2016						Thirteen Weeks Ended   March 29, 2015
	Pension Benefits			Other Benefits			Pension Benefits			Other Benefits
	(In thousands)
Net actuarial loss (gain), beginning of period	$	38,115		$	(79	)	$	43,907		$	(127	)
Amortization	(165		)	—			(179		)	—
Curtailment and settlement adjustments	—			—			(3,062		)	—
Actuarial loss	4,417			51			6,914			39
Asset loss (gain)	6,759			—			(389		)	—
Net actuarial loss (gain), end of period	$	49,126		$	(28	)	$	47,191		$	(88	)