Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2012

Defined Benefit Plan Disclosure [Line Items]

Summary Of Asset Allocation

The fair value of plan assets was $217,811,000 and $174,223,000 at December 31, 2012 and 2011 respectively. As of December 31, 2012 and 2011, these assets were allocated among asset categories as follows:

Asset Category	2012			2011			Current Minimum, Target and Maximum Allocation Policy
U.S. equity securities		44	%		43	%		30% — 50% — 70	%
International equity securities		18	%		16	%		0% — 20% — 30	%
Debt securities		26	%		25	%		15% — 30% — 55	%
Cash and cash equivalents		12	%		16	%		0% — 0% — 5	%
		100	%		100	%

Schedule Of Change In Benefit Obligation

The following table presents the change in benefit obligation and plan assets for the Company's defined benefit plans and postretirement benefit plan (in thousands):

													Other Postretirement Benefits
	Pension Benefits												Postretirement
	Pension Plan						SERP						Welfare Plan
	2012			2011			2012			2011			2012			2011
Change in benefit obligation
Benefit obligation at beginning of year	$	216,926		$	170,742		$	1,645		$	1,511		$	3,014		$	2,790
Service cost		10,206			7,303			—			—			—			—
Interest cost		10,506			9,693			73			80			133			164
Actuarial loss (gain)		34,084			33,662			131			157			(235	)		182
Gross benefits paid		(4,811	)		(4,474	)		(103	)		(103	)		(58	)		(122	)
Benefit obligation at end of year	$	266,911		$	216,926		$	1,746		$	1,645		$	2,854		$	3,014
Accumulated benefit obligation at end of year	$	214,951		$	179,190		$	1,746		$	1,645		$	—		$	—

Weighted-Average Assumption Used To Determine Benefit Obligation And Net Periodic Benefit Cost

Weighted-average assumption used to determine benefit obligation at end of year
Discount rate	4.1	%	4.6	%	4.1	%	4.6	%	4.1	%	4.6	%
Rate of compensation increase	4.25	%	4.25	%	—		—		—		—
Health care cost trend rate
Initial rate	—		—		—		—		7.5	%	7.5	%
Ultimate rate	—		—		—		—		5.0	%	5.0	%
Years to ultimate	—		—		—		—		2017		2017

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

Effect of one-percentage-point change in assumed health care cost trend rate on postretirement obligation
Increase	$	—	$	—	$	—	$	—	$	267		$	285
Decrease		—		—		—		—		(234	)		(250	)

Summary Of Change In Plan Assets

Change in plan assets
Fair value of plan assets at beginning of year	$	174,223		$	152,696		$	—		$	—		$	—		$	—
Actual return on plan assets		23,399			(1,499	)		—			—			—			—
Employer contribution		25,000			27,500			103			103			58			122
Gross benefits paid		(4,811	)		(4,474	)		(103	)		(103	)		(58	)		(122	)
Fair value of plan assets at end of year	$	217,811		$	174,223		$	—		$	—		$	—		$	—

Summary Of Funded Status At End Of Year

The following table presents the funded status and amounts recognized in the Company's consolidated balance sheet for the Company's defined benefit plans and postretirement benefit plan at December 31, 2012 and 2011 (in thousands):

										Other Postretirement Benefits
	Pension Benefits												Postretirement
	Pension Plan						SERP						Welfare Plan
	2012			2011			2012			2011			2012			2011
Funded status at end of year
Fair value of plan assets	$	217,811		$	174,223		$	—		$	—		$	—		$	—
Benefit obligations		266,911			216,926			1,746			1,645			2,854			3,014
Funded status and amount recognized at end of year	$	(49,100	)	$	(42,703	)	$	(1,746	)	$	(1,645	)	$	(2,854	)	$	(3,014	)

Amounts Recognized In The Consolidated Balance Sheets

Amounts recognized in the consolidated balance sheets
Current liability	$	—		$	—		$	(101	)	$	(102	)	$	(223	)	$	(256	)
Long-term liability		(49,100	)		(42,703	)		(1,645	)		(1,543	)		(2,631	)		(2,758	)

Amounts Recognized In Accumulated Other Comprehensive Income

Amounts recognized in accumulated other comprehensive income
Net actuarial loss (gain)	$	102,795	$	86,633	$	559	$	442	$	(6,378	)	$	(6,751	)
Prior service cost (credit)		—		—		—		—		—			—
Accumulated other compensation income	$	102,795	$	86,633	$	559	$	442	$	(6,378	)	$	(6,751	)

Projected Benefit Obligation In Excess Of Plan Assets

The projected benefit obligation and fair value of plan assets for pension plans with a projected benefit obligation in excess of plan assets at December 31, 2012 and 2011 were as follows (in thousands):

	Pension Benefits
	Pension Plan				SERP
	2012		2011		2012		2011
Projected benefit obligation in excess of plan assets
Projected benefit obligation at end of year	$	266,911	$	216,926	$	1,746	$	1,645
Fair value of plan assets at end of year		217,811		174,223		—		—

Accumulated Benefit Obligation In Excess Of Plan Assets

The projected benefit obligation, accumulated benefit obligation and fair value of plan assets for pension plans with an accumulated benefit obligation in excess of plan assets at December 31, 2012 and 2011 were as follows (in thousands):

	Pension Benefits
	Pension Plan				SERP
	2012		2011		2012		2011
Accumulated benefit obligation in excess of plan assets
Projected benefit obligation at end of year	$	—	$	216,926	$	1,746	$	1,645
Accumulated benefit obligation at end of year		—		179,190		1,746		1,645
Fair value of plan assets at end of year		—		174,223		—		—

Schedule Of Employer Contribution

The following tables presents the expected cash flows for the Company's defined benefit plans and postretirement benefit plan at December 31, 2012 and 2011 (in thousands):

							Other Postretirement Benefits
	Pension Benefits								Postretirement
	Pension Plan				SERP				Welfare Plan
	2012		2011		2012		2011		2012		2011
Expected employer contributions
First year	$	3,400	$	11,800	$	101	$	102	$	223	$	256

Expected Benefit Payments

							Other Postretirement Benefits
	Pension Benefits								Postretirement
	Pension Plan				SERP				Welfare Plan
		2012		2011		2012		2011		2012		2011
Expected benefit payments (gross)
Year one	$	6,213	$	5,142	$	101	$	102	$	237	$	271
Year two		6,545		5,590		100		100		242		264
Year three		6,992		6,113		98		98		245		268
Year four		7,579		6,649		105		97		245		271
Year five		8,265		7,252		109		105		255		271
Next five years		53,734		47,701		616		597		1,154		1,343

Summary Of Expected Federal Subsidy

							Other Postretirement Benefits
	Pension Benefits								Postretirement
	Pension Plan				SERP				Welfare Plan
		2012		2011		2012		2011		2012			2011
Expected federal subsidy
Year one	$	—	$	—	$	—	$	—	$	(14	)	$	(15	)
Year two		—		—		—		—		(14	)		(15	)
Year three		—		—		—		—		(14	)		(15	)
Year four		—		—		—		—		(14	)		(15	)
Year five		—		—		—		—		(14	)		(15	)
Next five years		—		—		—		—		(62	)		(67	)

Components Of Net Periodic Benefit Cost

The components of net periodic benefit cost and other changes in plan assets and benefit obligations recognized in other comprehensive income for the Company's defined benefit plans for the years ended December 31, 2012, 2011 and 2010 were as follows (in thousands):

	Pension Benefits
	Pension Plan									SERP
	2012			2011			2010			2012			2011			2010
Components of net periodic benefit cost
Service cost	$	10,206		$	7,303		$	6,883		$	—		$	—		$	—
Interest cost		10,506			9,693			9,399			73			80			84
Expected return on plan assets		(12,872	)		(11,283	)		(9,329	)		—			—			—
Amortization:
Actuarial loss		7,395			2,859			3,162			14			7			2
Prior service credit		—			(38	)		(89	)		—			—			—
Net periodic benefit cost		15,235			8,534			10,026			87			87			86
Other changes in plan assets and benefit obligations recognized in other comprehensive income
Current year actuarial loss		23,557			46,444			8,145			131			156			102
Recognition of actuarial loss		(7,395	)		(2,859	)		(3,162	)		(14	)		(7	)		(2	)
Recognition of prior service credit		—			38			89			—			—			—
Total recognized in other comprehensive income		16,162			43,623			5,072			117			149			100
Total recognized in net periodic benefit cost and other comprehensive income	$	31,397		$	52,157		$	15,098		$	204		$	236		$	186

Weighted average assumptions used to determine net periodic benefit cost
Discount rate	4.6	%	5.5	%	6.1	%	4.6	%	5.5	%	6.1	%
Expected long-term rate of return on plan assets	7.5	%	7.5	%	7.5	%	—		—		—
Rate of compensation increase	4.25	%	4.25	%	4.0	%	—		—		—

Pension Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Weighted-Average Assumption Used To Determine Benefit Obligation And Net Periodic Benefit Cost

Weighted average assumptions used to determine net periodic benefit cost
Discount rate	4.6	%	5.5	%	6.1	%	4.6	%	5.5	%	6.1	%
Expected long-term rate of return on plan assets	7.5	%	7.5	%	7.5	%	—		—		—
Rate of compensation increase	4.25	%	4.25	%	4.0	%	—		—		—

Estimated Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Into Net Periodic Benefit Cost

The estimated amounts that will be amortized from accumulated other comprehensive income into net periodic benefit cost in 2013 are as follows (in thousands):

	Pension Benefits
	Pension Plan		SERP
Actuarial loss	$	8,224	$	19
Prior service credit		—		—
	$	8,224	$	19

Other Postretirement Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Weighted-Average Assumption Used To Determine Benefit Obligation And Net Periodic Benefit Cost

Weighted average assumptions used to determine net periodic benefit cost
Discount rate	4.6	%	5.5	%	6.1	%
Health care cost trend rate:
Initial rate	7.5	%	8.0	%	7.5	%
Ultimate rate	5.0	%	5.0	%	5.0	%
Years to ultimate	2017		2017		2015

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

Effect of one-percentage-point change in assumed health care cost trend rate on aggregate service and interest cost
Increase	$	13		$	16		$	14
Decrease		(11	)		(14	)		(12	)

Components Of Net Periodic Benefit Cost

The components of net periodic benefit cost and other changes in benefit obligations recognized in other comprehensive income for the Company's postretirement benefit plan for the years ended December 31, 2012, 2011 and 2010 were as follows (in thousands):

	Other Postretirement Benefits
	Postretirement Welfare Plan
	2012			2011			2010
Components of net periodic benefit cost
Service cost	$	—		$	—		$	—
Interest cost		133			164			154
Curtailment loss		—			119			—
Amortization:
Actuarial gain		(618	)		(593	)		(660	)
Prior service cost		—			40			560
Net periodic benefit cost		(485	)		(270	)		54
Other changes in benefit obligations recognized in other comprehensive income
Current year actuarial gain		(235	)		182			(3,109	)
Recognition of actuarial gain		618			593			660
Recognition of prior service cost		—			(158	)		(40	)
Adjustment for actual Medicare Part D reimbursement		(10	)		(3	)		(10	)
Total recognized in other comprehensive income		373			614			(2,499	)
Total recognized in net periodic benefit cost and other comprehensive income	$	(112	)	$	344		$	(2,445	)

Estimated Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Into Net Periodic Benefit Cost

The estimated amounts that will be amortized from accumulated other comprehensive income into net periodic benefit cost in 2013 are as follows (in thousands):

	Other Postretirement Benefits
	Postretirement Welfare Plan
Actuarial gain	$	(620	)
Prior service cost		—
	$	(620	)