Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2011

Employee Benefit Plans [Abstract]

Schedule Of Defined Benefit Plans Disclosures

	Pension Benefits		Other Postretirement                Benefits
	2011	2010	2011	2010
	(In thousands)
CHANGE IN BENEFIT OBLIGATIONS
Benefit obligations at January 1	$  297,707	$  280,693	$    39,633	$    46,445
Service cost	16,490	15,870	3,917	1,509
Interest cost	16,253	15,822	3,279	2,083
Plan amendments	(3,235)	(92)	(55,542)	—
Benefits paid	(18,848)	(15,924)	(1,669)	(1,845)
Acquisition of ICG	—	—	48,441	—
Other-primarily actuarial loss (gain)	25,584	1,338	7,070	(8,559)
Benefit obligations at December 31	$  333,951	$  297,707	$    45,129	$    39,633
CHANGE IN PLAN ASSETS
Value of plan assets at January 1	$  247,713	$  211,899	$            —	$            —
Actual return on plan assets	9,443	34,401	—	—
Employer contributions	46,766	17,337	1,669	1,845
Benefits paid	(18,848)	(15,924)	(1,669)	(1,845)
Value of plan assets at December 31	$  285,074	$  247,713	$            —	$            —
Accrued benefit cost	$   (48,877)	$   (49,994)	$   (45,129)	$   (39,633)
ITEMS NOT YET RECOGNIZED AS A COMPONENT OF NET PERIODIC BENEFIT COST
Prior service credit (cost)	$       1,736	$      (1,310)	$    62,920	$      9,742
Accumulated gain (loss)	(68,302)	(39,099)	1,795	11,965
	$   (66,566)	$   (40,409)	$    64,715	$    21,707
BALANCE SHEET AMOUNTS
Current liability	$         (633)	$         (840)	$     (2,820)	$     (1,840)
Noncurrent liability	$   (48,244)	$   (49,154)	$   (42,309)	$   (37,793)
	$   (48,877)	$   (49,994)	$   (45,129)	$   (39,633)

Schedule Of Net Benefit Costs

	Pension Benefits			Other Postretirement Benefits
Year Ended December 31,	2011	2010	2009	2011	2010	2009
	(In thousands)
Service cost	$    16,490	$    15,870	$    13,444	$    3,917	$    1,509	$    2,954
Interest cost	16,253	15,822	15,946	3,279	2,083	3,667
Expected return on plan assets*	(21,812)	(19,392)	(17,719)	—	—	—
Amortization of prior service cost (credit)	(189)	173	193	(2,364)	(2,364)	2,161
Amortization of other actuarial losses (gains)	8,748	7,130	3,967	(3,100)	(2,918)	(2,897)
Curtailments	—	—	585	—	—	—
Net benefit cost	$    19,490	$    19,603	$    16,416	$    1,732	$   (1,690)	$    5,885

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* The Company does not fund its other postretirement benefit obligations.

Schedule Of Assumptions Used To Calculate Benefit Obligation

	Pension        Benefits		Other Postretirement        Benefits
	2011	2010	2011	2010
Weighted average assumptions:
Discount rate	4.91%	5.71%	4.52%	5.23%
Rate of compensation increase	3.39%	3.39%	N/A	N/A

Schedule Of Assumptions Used

	Pension Benefits			Other Postretirement Benefits
	2011	2010	2009	2011	2010	2009
Weighted average assumptions:
Discount rate	5.71%	5.97%	6.85%	5.23%	5.67%	6.85%/5.68%
Rate of compensation increase	3.39%	3.39%	3.39%	N/A	N/A	N/A
Expected return on plan assets	8.50%	8.50%	8.50%	N/A	N/A	N/A

Schedule Of Allocation Of Plan Assets

	Total		Level 1				Level 2		Level 3
	2011	2010		2011	2010	2011		2010		2011	2010
	(In thousands)
Equity securities:(A)
U.S. small-cap	$11,178	$10,647		$11,178	$10,647	$ —		$ —		$ —	$ —
U.S. mid-cap	50,264	46,851		23,474	21,163	26,790		25,688		—	—
U.S. large-cap	91,561	77,632		44,820	38,397	46,741		39,235		—	—
Non-U.S.	22,509	24,995		—	—	22,509		24,995		—	—
Fixed income securities:
U.S. government securities(B)	13,454	3,053		12,738	2,492	716		561		—	—
Non-U.S. government securities(C)	2,968	3,469		—	—	2,968		3,469		—	—
U.S. government asset and mortgage backed securities(D)	800	1,073		—	—	800		1,073		—	—
Corporate fixed income(E)	14,004	13,737		—	—	14,004		13,737		—	—
State and local government securities(F)	18,416	13,679		—	—	18,416		13,679		—	—
Other fixed income(G)	51,470	45,628		—	—	51,470		45,628		—	—
Short-term investments(H)	8,029	6,110		—	—	8,029		6,110		—	—
Other investments(I)	421	839		—	—	421		839		—	—
Total	$285,074	$247,713		$92,210	$72,699	$192,864		$175,014		$ —	$ —

____________

(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.

Summary Of Estimated Future Benefit Payments

	Pension    Benefits	Other Postretirement      Benefits
	(In thousands)
2012	$    17,898	$     3,411
2013	20,854	3,787
2014	22,803	4,060
2015	22,492	4,406
2016	26,185	4,694
Years 2017-2021	164,788	25,122
	$  275,020	$  45,480