Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2014

Pension and Other Postretirement Benefit Expense [Abstract]

Pension Benefit Costs

Summaries of the changes in the benefit obligations, plan assets and funded status of the plans are as follows:

							Other Postretirement
	Pension Benefits						Benefits
	2014			2013			2014			2013
	(In thousands)
CHANGE IN BENEFIT OBLIGATIONS
Benefit obligations at January 1	$	355,468		$	390,894		$	42,531		$	49,326
Service cost	21,478			27,065			1,649			2,027
Interest cost	17,070			16,207			1,841			1,739
Plan amendments	(23		)	—			—			—
Curtailments	(25,787		)	(3,027		)	—			(2,519		)
Benefits paid	(53,974		)	(41,562		)	(3,431		)	(3,276		)
Other-primarily actuarial loss (gain)	39,504			(34,109		)	(6,492		)	(4,766		)
Benefit obligations at December 31	$	353,736		$	355,468		$	36,098		$	42,531
CHANGE IN PLAN ASSETS
Value of plan assets at January 1	$	347,952		$	322,874		$	—		$	—
Actual return on plan assets	36,130			52,247			—			—
Employer contributions	6,601			14,393			3,431			3,276
Benefits paid	(53,974		)	(41,562		)	(3,431		)	(3,276		)
Value of plan assets at December 31	$	336,709		$	347,952		$	—		$	—
Accrued benefit cost	$	(17,027	)	$	(7,516	)	$	(36,098	)	$	(42,531	)
ITEMS NOT YET RECOGNIZED AS A COMPONENT OF NET PERIODIC BENEFIT COST
Prior service credit (cost)	$	—		$	1,732		$	21,972		$	31,925
Accumulated gain (loss)	(11,332		)	10,096			9,125			3,394
	$	(11,332	)	$	11,828		$	31,097		$	35,319
BALANCE SHEET AMOUNTS
Current liability	$	(767	)	$	(405	)	$	(3,430	)	$	(3,276	)
Noncurrent liability	$	(16,260	)	$	(7,111	)	$	(32,668	)	$	(39,255	)
	$	(17,027	)	$	(7,516	)	$	(36,098	)	$	(42,531	)

Other Postretirement Benefit Costs Table Text Block

	Pension Benefits									Other Postretirement Benefits
	Year Ended December 31,									Year Ended December 31,
	2014			2013			2012			2014			2013			2012
	(In thousands)
Service cost	$	21,478		$	27,065		$	27,466		$	1,649		$	2,027		$	2,142
Interest cost	17,070			16,207			15,668			1,841			1,739			2,020
Curtailments	(25,368		)	47			324			—			(5,444		)	(4,049		)
Settlements	646			—			—			—			—			—
Expected return on plan assets	(23,756		)	(23,761		)	(22,030		)	—			—			—
Amortization of prior service credits	(257		)	(204		)	259			(10,003		)	(10,621		)	(11,458		)
Amortization of other actuarial losses	3,128			14,616			14,666			(761		)	(252		)	(522		)
Net benefit cost (credit)	$	(7,059	)	$	33,970		$	36,353		$	(7,274	)	$	(12,551	)	$	(11,867	)

Schedule of Assumptions Used

Assumptions. The following table provides the weighted average assumptions used to determine the actuarial present value of projected benefit obligations at December 31 of the respective years.

	Pension Benefits		Other Postretirement Benefits
	2014	2013	2014	2013
Discount rate	4.15%	5.08%	3.91%	4.58%
Rate of compensation increase	N/A	3.39%	N/A	N/A

The following table provides the weighted average assumptions used to determine net periodic benefit cost for the respective years ended December 31.

	Pension Benefits							Other Postretirement Benefits
	2014			2013			2012	2014	2013		2012
Discount rate	5.08/	4.23/	4.14%	4.13	/	5.05%	4.91%	4.58%	3.64/	4.58%	4.52%
Rate of compensation increase	3.39%			3.39%			3.39%	N/A	N/A		N/A
Expected return on plan assets	7.75%			7.75%			7.75%	N/A	N/A		N/A

Schedule of Allocation of Plan Assets

The Company's pension plan assets at December 31, 2014 and 2013, respectively, are categorized below according to the fair value hierarchy as defined in Note 16, "Fair Value Measurements":

	Total				Level 1				Level 2				Level 3
	2014		2013		2014		2013		2014		2013		2014		2013
	(In thousands)
Equity Securities:(A)
U.S. small-cap	$	16,512	$	14,901	$	16,512	$	14,901	$	—	$	—	$	—	$	—
U.S. mid-cap	46,481		62,271		17,301		28,654		29,180		33,617		—		—
U.S. large-cap	89,008		110,947		43,181		53,708		45,827		57,239		—		—
Non-U.S.	25,905		29,165		—		—		25,905		29,165		—		—
Fixed income securities:
U.S. government securities(B)	13,708		18,545		12,988		17,714		720		831		—		—
Non-U.S. government securities(C)	1,599		2,143		—		—		1,599		2,143		—		—
U.S. government asset and mortgage backed securities(D)	830		600		—		—		830		600		—		—
Corporate fixed income(E)	22,702		9,902		—		—		22,702		9,902		—		—
State and local government securities(F)	8,005		8,301		—		—		8,005		8,301		—		—
Other fixed income(G)	83,735		58,093		—		—		83,735		58,093		—		—
Short-term investments(H)	6,818		14,663		—		—		6,818		14,663		—		—
Other investments(I)	21,406		18,421		—		—		3,336		1,404		18,070		17,017
Total	$	336,709	$	347,952	$	89,982	$	114,977	$	228,657	$	215,958	$	18,070	$	17,017

 ^(A) Equity securities includes investments in 1) common stock, 2) preferred stock and 3) mutual funds. Investments in common and preferred stocks are valued using quoted market prices multiplied by the number of shares owned. Investments in mutual funds are valued at the net asset value per share multiplied by the number of shares held as of the measurement date and are traded on listed exchanges.

^(B) U.S. government securities includes agency and treasury debt. These investments are valued using dealer quotes in an active market.

^(C) Non-U.S. government securities includes debt securities issued by foreign governments and are valued utilizing a price spread basis valuation technique with observable sources from investment dealers and research vendors.

^(D) U.S. government asset and mortgage backed securities includes government-backed mortgage funds which are valued utilizing an income approach that includes various valuation techniques and sources such as discounted cash flows models, benchmark yields and securities, reported trades, issuer trades and/or other applicable data.

^(E) Corporate fixed income is primarily comprised of corporate bonds and certain corporate asset-backed securities that are denominated in the U.S. dollar and are investment-grade securities. These investments are valued using dealer quotes.

^(F) State and local government securities include different U.S. state and local municipal bonds and asset backed securities, these investments are valued utilizing a market approach that includes various valuation techniques and sources such as value generation models, broker quotes, benchmark yields and securities, reported trades, issuer trades and/or other applicable data.

^(G) Other fixed income investments are actively managed fixed income vehicles that are valued at the net asset value per share multiplied by the number of shares held as of the measurement date.

^(H) Short-term investments include governmental agency funds, government repurchase agreements, commingled funds, and pooled funds and mutual funds. Governmental agency funds are valued utilizing an option adjusted spread valuation technique and sources such as interest rate generation processes, benchmark yields and broker quotes. Investments in governmental repurchase agreements, commingled funds and pooled funds and mutual funds are valued at the net asset value per share multiplied by the number of shares held as of the measurement date.

(I) Other investments includes cash, forward contracts, derivative instruments, credit default swaps, interest rate swaps and mutual funds. Investments in interest rate swaps are valued utilizing a market approach that includes various valuation techniques and sources such as value generation models, broker quotes in active and non-active markets, benchmark yields and securities, reported trades, issuer trades and/or other applicable data. Forward contracts and derivative instruments are valued at their exchange listed price or broker quote in an active market. The mutual funds are valued at the net asset value per share multiplied by the number of shares held as of the measurement date and are traded on listed exchanges.

Schedule of Expected Benefit Payments

The following represents expected future benefit payments from the plan, which reflect expected future service, as appropriate:

			Other
	Pension		Postretirement
	Benefits		Benefits
	(In thousands)
2015	$	17,737	$	3,665
2016	20,544		3,657
2017	22,503		3,551
2018	24,086		3,486
2019	22,943		3,421
Next 5 years	130,088		14,680
	$	237,901	$	32,460