Retirement plans (Tables)

12 Months Ended

Dec. 31, 2015

Defined Benefit Plan Disclosure [Line Items]

Multiemployer Pension Plans Table

Multi-employer Pension Plans
	EIN Number/	Zone Status Dec. 31,		FIP/RP Status Pending/Implemented	Contributions(in thousands)						Surcharge Imposed	Expiration Dates of CBAs
Pension Plan Name	Plan Number	2015	2014		2015		2014		2013
AFTRA Retirement Plan (a)	13-6414972/001	Green as of Nov. 30, 2014	Green as of Nov. 30, 2013	NA	$	1,104	$	973	$	988	NA	9/11/2015 4/16/2017 1/27/2018

(a) This plan has elected to utilize special amortization provisions provided under the Preservation of Access to Care for Medicare Beneficiaries and Pension Relief Act of 2010.

Retirement Plans

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

Our pension costs, which include costs for our qualified and non-qualified plans, are presented in the following table:

In thousands of dollars
	2015			2014			2013
				(recast)			(recast)
Service cost—benefits earned during the period	$	920		$	812		$	1,051
Interest cost on benefit obligation	23,800			23,558			9,760
Expected return on plan assets	(31,464		)	(28,697		)	(9,754		)
Amortization of prior service costs	673			599			599
Amortization of actuarial loss	6,335			4,003			6,399
Pension expense for company-sponsored retirement plans	264			275			8,055
Settlement charge	—			—			1,356
Total pension cost	$	264		$	275		$	9,411

Schedule of Changes in Projected Benefit Obligations

The following table provides a reconciliation of pension benefit obligations (on a projected benefit obligation measurement basis), plan assets and funded status of company-sponsored retirement plans, along with the related amounts that are recognized in the Consolidated Balance Sheets.

In thousands of dollars
	Dec. 31, 2015			Dec. 28, 2014
				(recast)
Change in benefit obligations
Benefit obligations at beginning of year	$	566,224		$	502,068
Service cost	920			812
Interest cost	23,800			23,558
Actuarial loss (gain)	(12,514		)	67,596
Gross benefits paid	(34,401		)	(27,810		)
Transfers	42,595			—
Benefit obligations at end of year	$	586,624		$	566,224
Change in plan assets
Fair value of plan assets at beginning of year	$	387,626		$	360,374
Actual return on plan assets	(725		)	25,571
Employer contributions	12,008			29,491
Gross benefits paid	(34,401		)	(27,810		)
Transfers	35,685			—
Fair value of plan assets at end of year	$	400,193		$	387,626
Funded status at end of year	$	(186,431	)	$	(178,598	)
Amounts recognized in Consolidated Balance Sheets
Accrued benefit cost—current	$	(7,587	)	$	(6,923	)
Accrued benefit cost—noncurrent	$	(178,844	)	$	(171,675	)

Schedule of Net Funded Status

The funded status (on a projected benefit obligation basis)

of our principal retirement plans at Dec. 31, 2015, is as

follows:

In thousands of dollars
	Fair Value of Plan Assets		Benefit Obligation		Funded Status
GRP	$	155,103	$	197,219	$	(42,116	)
SERP (a)	—		87,679		(87,679		)
Dealey	245,090		301,060		(55,970		)
All other	—		666		(666		)
Total	$	400,193	$	586,624	$	(186,431	)

(a) The SERP is an unfunded, unsecured liability

Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets

The following table presents information for our retirement plans for which accumulated benefits exceed assets:

In thousands of dollars
	Dec. 31, 2015		Dec. 28, 2014
			(recast)
Accumulated benefit obligation	$	576,333	$	558,824
Fair value of plan assets	$	400,193	$	387,626

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets

The following table presents information for our retirement plans for which projected benefit obligations exceed assets:

In thousands of dollars
	Dec. 31, 2015		Dec. 28, 2014
			(recast)
Projected benefit obligation	$	586,624	$	566,224
Fair value of plan assets	$	400,193	$	387,626

Schedule of Net Periodic Benefit Cost Not yet Recognized

The following table summarizes the amounts recorded in accumulated other comprehensive income (loss) that have not yet been recognized as a component of pension expense as of the dates presented (pre-tax):

In thousands of dollars
	Dec. 31, 2015			Dec. 28, 2014
				(recast)
Net actuarial losses	$	(184,808	)	$	(148,210	)
Prior service cost	(3,367		)	(3,126		)
Amounts in accumulated other comprehensive income (loss)	$	(188,175	)	$	(151,336	)

Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss)

Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) consist of the following for continuing operations only:

In thousands of dollars
	2015
Current year actuarial loss	$	(43,821	)
Amortization of previously deferred actuarial loss	6,335
Amortization of previously deferred prior service costs	673
Total	$	(36,813	)

Schedule of Assumptions Used

Pension costs: The following assumptions were used to determine net pension costs:

	2015	2014	2013
		(recast)	(recast)
Discount rate	4.19%	4.84%	3.89%
Expected return on plan assets	8.00%	8.00%	8.25%
Rate of compensation increase	3.00%	3.00%	3.00%

Schedule Of Assumptions Used In Calculating Pension Benefit Obligations Table

Benefit obligations and funded status: The following assumptions were used to determine the year-end benefit obligations:

	Dec. 31, 2015	Dec. 28, 2014
		(recast)
Discount rate	4.46%	4.12%
Rate of compensation increase	3.00%	3.00%

Schedule of Allocation of Plan Assets

The asset allocation for the TRP at the end of 2015 and 2014, and target allocations for 2016, by asset category, are presented in the table below: 

Target Allocation			Allocation of Plan Assets
	2016		2015		2014
Equity securities	60	%	58	%	65	%
Debt securities	25		35		20
Other	15		7		15
Total	100	%	100	%	100	%

Schedule of Expected Benefit Payments

We estimate we will make the following benefit payments (from either retirement plan assets or directly from our funds), which reflect expected future employee service, as appropriate:

In thousands of dollars
2016	$	36,409
2017	$	42,097
2018	$	39,359
2019	$	40,416
2020	$	40,457
2021-2025	$	198,272