Pension Plans And Other Post-Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2011

Defined Benefit Plan Disclosure [Line Items]

Schedule Of Benefit Payments Of Expected Future Service

				Other
		Pension		Post-retirement
		Benefits		Benefits
Years:
2012	$	9,933	$	1,605
2013		10,692		1,797
2014		11,520		2,069
2015		12,302		2,275
2016		13,110		2,520
2017 - 2021		79,950		15,761

Schedule Of Changes In Benefit Obligation And Fair Value Of Plan Assets

								Other
		Pension Benefits						Post-retirement Benefits
		2011			2010			2011			2010
Change in benefit obligation:
Benefit obligation at January 1,	$	234,891		$	217,837		$	47,772		$	41,477
Service cost		4,626			4,527			1,236			1,130
Interest cost		13,547			12,857			2,761			2,442
Actuarial loss		22,503			10,927			3,925			3,595
Plan participants' contributions		-			-			219			173
Benefits paid		(8,958	)		(12,145	)		(1,227	)		(1,045	)
Plan amendments		416			630			-			-
Curtailments		(1,057	)		-			-			-
Settlements		-			258			-			-
		265,968			234,891			54,686			47,772
Less discontinued operations		28,881			25,432			4,497			3,816
Benefit obligation at December 31,		237,087			209,459			50,189			43,956
Change in plan assets:
Fair value of plan assets at January 1,		159,151			138,599			29,673			26,524
Actual return on plan assets		(1,903	)		19,565			554			2,652
Employer contributions		17,329			13,132			1,825			1,351
Benefits paid		(8,958	)		(12,145	)		(994	)		(854	)
		165,619			159,151			31,058			29,673
Less discontinued operations		16,707			13,627			2,927			2,934
Fair value of plan assets at December 31,		148,912			145,524			28,131			26,739
Funded status of plan:
Net amount recognized at December 31,	$	88,175		$	63,935		$	22,058		$	17,217

Schedule Of Net Liability Recognized On Consolidated Balance Sheets

								Other
		Pension Benefits						Post-retirement Benefits
		2011			2010			2011			2010
Current liability	$	(217	)	$	(242	)	$	-		$	-
Noncurrent liability		(87,958	)		(63,693	)		(22,058	)		(17,217	)
Net liability recognized	$	(88,175	)	$	(63,935	)	$	(22,058	)	$	(17,217	)

Schedule Of Accumulated And Projected Benefit Obligations

		Projected Benefit
		Obligation Exceeds
		the Fair Value of
		Plan Assets
		2011		2010
Projected benefit obligation	$	237,087	$	209,459
Fair value of plan assets		148,912		145,524

		Accumulated Benefit
		Obligation Exceeds
		the Fair Value of
		Plan Assets
		2011		2010
Accumulated benefit obligation	$	209,893	$	184,786
Fair value of plan assets		148,912		145,524

Components Of Net Periodic Benefit Costs

													Other
		Pension Benefits									Post-retirement Benefits
		2011			2010			2009			2011			2010			2009
Service cost	$	4,626		$	4,527		$	4,349		$	1,236		$	1,130		$	1,080
Interest cost		13,547			12,857			12,524			2,761			2,442			2,288
Expected return on plan assets		(12,973	)		(11,258	)		(9,316	)		(2,031	)		(1,869	)		(1,688	)
Amortization of transition
obligation (asset)		-			-			(182	)		104			104			104
Amortization of prior service cost		198			189			151			(268	)		(268	)		(279	)
Amortization of actuarial loss		4,076			4,408			5,152			836			619			587
Amortization of regulatory asset		-			-			-			137			137			137
Curtailment loss		100			-			-			27			-			-
Settlement loss		-			929			586			-			-			-
Capitalized costs		(3,645	)		(3,416	)		(2,721	)		(700	)		(508	)		(363	)
		5,929			8,236			10,543			2,102			1,787			1,866
Less discontinued operations		1,149			2,167			2,157			197			19			283
Net periodic benefit cost	$	4,780		$	6,069		$	8,386		$	1,905		$	1,768		$	1,583

Schedule Of Net Periodic Benefit Cost Not Yet Recognized

						Other
		Pension Benefits				Post-retirement Benefits
		2011		2010		2011			2010
Net actuarial loss	$	91,964	$	59,718	$	17,883		$	13,317
Prior service cost (credit)		1,072		954		(961	)		(1,229	)
Transition obligation (asset)		-		-		77			208
		93,036		60,672		16,999			12,296
Less discontinued operations		8,475		4,372		1,911			836
Total recognized in regulatory assets	$	84,561	$	56,300	$	15,088		$	11,460

Schedule Of Assumptions Related To Pension And Other Postretirement Benefit Plans

					Other
	Pension Benefits				Post-retirement Benefits
	2011		2010		2011		2010
Weighted Average Assumptions Used
to Determine Benefit Obligations
as of December 31,
Discount rate	5.00	%	5.75	%	5.00	%	5.75	%
Rate of compensation increase	4.0-4.5	%	4.0-4.5	%	4.0	%	4.0	%
Assumed Health Care Cost Trend
Rates Used to Determine Benefit
Obligations as of December 31,
Health care cost trend rate	n/a		n/a		8.5	%	9.0	%
Rate to which the cost trend is assumed
to decline (the ultimate trend rate)	n/a		n/a		5.0	%	5.0	%
Year that the rate reaches the ultimate
trend rate	n/a		n/a		2019		2019
Weighted Average Assumptions Used
to Determine Net Periodic Benefit
Costs for Years Ended December 31,
Discount rate	5.75	%	5.91	%	5.75	%	5.91	%
Expected return on plan assets	7.75	%	8.0	%	5.17-7.75%		5.33-8.0	%
Rate of compensation increase	4.0- 4.5% 4.0 - 4.5%				4.0	%	4.0	%
Assumed Health Care Cost Trend
Rates Used to Determine Net Periodic
Benefit Costs for Years Ended December 31,
Health care cost trend rate	n/a		n/a		9.0	%	8.0	%
Rate to which the cost trend is assumed
to decline (the ultimate trend rate)	n/a		n/a		5.0	%	5.0	%
Year that the rate reaches the ultimate
trend rate	n/a		n/a		2019		2016

Schedule Of Effect Of One-Percentage-Point Change In Assumed Health Care Cost Trend Rates

		1-Percentage-		1-Percentage-
		Point		Point
		Increase		Decrease
Effect on the health-care component of the
accrued other post-retirement benefit
obligation	$	3,303	$	(2,828	)
Effect on aggregate service and interest cost
components of net periodic post-retirement
health-care benefit cost	$	199	$	(169	)

Schedule Of Changes In The Fair Value For Pension Assets Valued Using Significant Unobservable Inputs

		2011		2010
Balance at January 1,	$	-	$	1,271
Actual return on plan assets:
Relating to assets still held at the reporting date		-		-
Relating to assets sold during the period		-		7
Purchases, sales, and settlements		-		(1,278	)
Transfers to / from level 3		-		-
Balance at December 31,	$	-	$	-

Pension Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule Of Fair Value Of Plan Assets

Asset Class:		Total		Level 1		Level 2		Level 3
Equity securities (a)
Common stocks	$	106,380	$	106,380	$	-	$	-
Mutual funds		3,604		3,604		-		-
Debt securities (b)
U.S. Treasury and government
agency bonds		14,631		-		14,631		-
Corporate and foreign bonds		9,682		-		9,682		-
Mutual funds		15,490		15,490		-		-
Cash (c)		15,832		-		15,832		-
Total pension assets	$	165,619	$	125,474	$	40,145	$	-

The fair value of the Company's pension plans' assets at December 31, 2010 by asset class are as follows:

Asset Class:		Total		Level 1		Level 2		Level 3
Equity securities (a)
Common stocks	$	100,913	$	100,913	$	-	$	-
Mutual funds		10,746		10,746		-		-
Debt securities (b)
U.S. Treasury and government
agency bonds		12,807		-		12,807		-
Corporate and foreign bonds		11,171		-		11,171		-
Mutual funds		14,045		14,045		-		-
Cash (c)		9,469		-		9,469		-
Total pension assets	$	159,151	$	125,704	$	33,447	$	-

(a)	Investments in common stocks are valued using unadjusted quoted prices obtained from active markets. Investments in mutual funds, which invest in common stocks, are valued using the net asset value per unit as obtained from quoted market prices for the mutual funds.
(b)	Investments in U.S. Treasury and government agency bonds and corporate and foreign bonds are valued by a pricing service which utilizes pricing models that incorporate available trade, bid, and other market information to value the fixed income securities. Investments in mutual funds, which invest in bonds, are valued using the net asset value per unit as obtained from quoted market prices for the mutual fund.
(c)	Cash is comprised of money market funds, which are valued utilizing the net asset value per unit based on the fair value of the underlying assets as determined by the fund's investment managers.

Other Post-Retirement Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule Of Fair Value Of Plan Assets

Asset Class:		Total		Level 1		Level 2		Level 3
Equity securities (a)
Common stocks	$	11,311	$	11,311	$	-	$	-
Mutual funds		6,190		6,190		-		-
Debt securities (b)
U.S. Treasury and government
agency bonds		4,653		-		4,653		-
Corporate and foreign bonds		4,462		-		4,462		-
Mutual funds		1,347		1,347		-		-
Cash (c)		3,095		-		3,095		-
Total other post-retirement assets	$	31,058	$	18,848	$	12,210	$	-

The fair value of the Company's other post-retirement benefit plans' assets at December 31, 2010 by asset class are as follows:

Asset Class:		Total		Level 1		Level 2		Level 3
Equity securities (a)
Common stocks	$	11,424	$	11,424	$	-	$	-
Mutual funds		6,320		6,320		-		-
Debt securities (b)
U.S. Treasury and government
agency bonds		4,751		-		4,751		-
Corporate and foreign bonds		3,972		-		3,972		-
Mutual funds		1,100		1,100				-
Cash (c)		2,106		-		2,106		-
Total other post-retirement assets	$	29,673	$	18,844	$	10,829	$	-

(a)	Investments in common stocks are valued using unadjusted quoted prices obtained from active markets. Investments in mutual funds, which invest in common stocks, are valued using the net asset value per unit as obtained from quoted market prices for the mutual funds.
(b)	Investments in U.S. Treasury and government agency bonds and corporate and foreign bonds are valued by a pricing service which utilizes pricing models that incorporate available trade, bid, and other market information to value the fixed income securities. Investments in mutual funds, which invest in bonds, are valued using the net asset value per unit as obtained from quoted market prices for the mutual fund.
(c)	Cash is comprised of money market funds, which are valued utilizing the net asset value per unit based on the fair value of the underlying assets as determined by the fund's investment managers.

Schedule Of Target Asset Allocations

	2012		Percentage of Plan
	Target		Assets at December 31,
	Allocation		2011		2010
Asset Class:
Equity securities	50 to	75%	56	%	60	%
Debt securities	25 to	50%	34	%	33	%
Cash	0	%	10	%	7	%
Total	100	%	100	%	100	%