Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2011

Employee Benefit Plans [Abstract]

Net Periodic Pension Cost

(Dollars in thousands)	Year Ended December 31,
	2011		2010		2009
Service cost		$    2,272		$    2,127		$    2,337
Interest cost		4,555		4,291		4,129
Expected return on plan assets		(8,343)		(7,138)		(5,328)
Amortization of transition asset		0		(131)		(175)
Recognized net actuarial loss		2,427		2,317		3,506
Amortization of prior service cost		1		1		1
Net periodic pension cost		$      912		$    1,467		$    4,470
Weighted-Average Assumptions:
Discount rate		5.75%		6.25%		6.25%
Expected return on assets		8.00%		8.00%		8.00%
Rate of Compensation Increase (prior to age 45)		3.75%		3.75%		4.75%
Rate of Compensation Increase (otherwise)		2.75%		2.75%		3.25%

Reconciliation of the beginning and ending balances of the projected benefit obligation and the fair value of plan assets and the accumulated benefit obligation

(Dollars in thousands)	December 31,
Change in Projected Benefit Obligation	2011		2010
Projected Benefit Obligation at the Beginning of the Year		$    79,556		$    70,136
Service Cost		2,272		2,127
Interest Cost		4,555		4,291
Actuarial (Gain) Loss		11,288		5,142
Benefits Paid		(2,509)		(2,140)
Projected Benefit at the End of the Year		$    95,162		$    79,556
Accumulated Benefit Obligation at the End of the Year		$    86,661		$    72,577
Change in Plan Assets
Fair Value of Plan Assets at the Beginning of the Year		$  105,504		$    87,507
Actual Return on Plan Assets		(1,612)		11,037
Benefits Paid		(2,509)		(2,140)
Employer Contributions		0		9,100
Fair value of plan assets at end of year		$  101,383		$  105,504
Net Amount Recognized
Funded Status		$      6,221		$    25,949
Unrecognized Transition Asset		0		0
Unrecognized Prior Service Cost		4		5
Unrecognized Net Loss		50,590		31,773
Net Amount Recognized		$    56,815		$    57,727
Weighted-Average Assumptions at the End of the Year
Discount Rate		5.15%		5.75%
Rate of Compensation Increase (prior to age 45)		3.75%		3.75%
Rate of Compensation Increase (otherwise)		2.75%		2.75%

Asset allocation for the defined benefit pension plan as of the measurement date, by asset category

Plan Assets	Target Allocation 2011		Allowable Allocation Range		Percentage of Plan Assets at
					December 31, 2011		December 31, 2010
Equity Securities		70%		50-80%		61%		59%
Debt Securities		25%		20-40%		32%		34%
Other		5%		3-10%		7%		7%
Total						100%		100%

Expected benefit payments

Year	Amount
(In thousands)
2012		$    2,757
2013		3,068
2014		3,419
2015		3,762
2016		4,194
2017 through 2021		26,209

Balances of the plan assets, by fair value hierarchy level

			Fair Value Measurements at December 31, 2011 Using
(In thousands) Description	Balance as of December 31, 2011		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and Cash equivalents		$ 6,526		$ 6,526		$ 0		$ 0
Fixed Income Securities:
Mortgage backed securities		289		0		289		0
Collateralized mortgage obligations		232		0		232		0
Municipal obligations		879		0		879		0
Corporate bonds		3,391		3,103		288		0
Fixed Income Mutual Funds:
Fixed income-general		12,065		12,065		0		0
Domestic		10,442		10,442		0		0
Alternative		4,787		4,787		0		0
Equity Securities:
Preferred stock		198		198		0		0
Common stock		23,686		23,686		0		0
Equity Mutual Funds:
Global equity		3,816		3,816		0		0
Domestic equity large cap		4,592		4,592		0		0
Domestic equity small cap		12,117		12,117		0		0
International emerging equity		6,312		6,312		0		0
International equity developed		6,685		6,685		0		0
Alternative equity		4,604		4,604		0		0
Other Assets:
Partnerships		762		0		762		0
Total		$ 101,383		$ 98,933		$ 2,450		$ 0

			Fair Value Measurements at December 31, 2010 Using
(In thousands) Description	Balance as of December 31, 2010		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and Cash equivalents		$ 6,497		$ 6,497		$ 0		$ 0
Fixed Income Securities:
Mortgage backed securities		458		0		458		0
Collateralized mortgage obligations		413		0		413		0
Municipal obligations		815		0		815		0
Corporate bonds		4,257		3,913		344		0
Fixed Income Mutual Funds:
Fixed income - general		7,412		7,412		0		0
Domestic		16,174		16,174		0		0
Alternative		6,598		6,598		0		0
Equity Securities:
Preferred stock		185		185		0		0
Common stock		22,763		22,763		0		0
Equity Mutual Funds:
Global equity		3,879		3,879		0		0
Domestic equity large cap		4,641		4,641		0		0
Domestic equity small cap		11,018		11,018		0		0
International emerging equity		7,578		7,578		0		0
International equity developed		7,700		7,700		0		0
Alternative equity		4,223		4,223		0		0
Other Assets:
Partnerships		893		0		893		0
Total		$ 105,504		$ 102,581		$ 2,923		$ 0