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Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2012
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
Schedule of plan assets and benefit obligation activity
Using an accrual measurement date of December 31, 2012 and 2011, plan assets and benefit obligation activity for the Pension Plan are listed below:
 
(In thousands)
 
2012
 
2011
Change in fair value of plan assets
 
 
 
 
Fair value at beginning of measurement period
 
$
96,581

 
$
85,464

Actual return on plan assets
 
11,256

 
1,813

Company contributions
 
15,900

 
14,000

Benefits paid
 
(5,969
)
 
(4,696
)
Fair value at end of measurement period
 
$
117,768

 
$
96,581

Change in benefit obligation
 
 
 
 
Projected benefit obligation at beginning of measurement period
 
$
81,507

 
$
74,164

Service cost
 
4,271

 
4,557

Interest cost
 
4,048

 
3,967

Actuarial loss
 
13,796

 
3,515

Benefits paid
 
(5,969
)
 
(4,696
)
Projected benefit obligation at the end of measurement period
 
$
97,653

 
$
81,507

Funded status at end of year (fair value of plan assets less benefit obligation)
 
$
20,115

 
$
15,074
Schedule of allocation of plan assets
The asset allocation for the Pension Plan as of each measurement date, by asset category, was as follows:
 
 
 
 
 
Percentage of Plan Assets
Asset category
 
Target Allocation
 
2012
 
2011
Equity securities
 
50% - 100%
 
83
%
 
80
%
Fixed income and cash equivalents
 
remaining balance
 
17
%
 
20
%
Total
 
 
 
100
%
 
100
%
Schedule of assumptions used to determine benefit obligations
The weighted average assumptions used to determine benefit obligations at December 31, 2012, 2011 and 2010 were as follows:
 
 
 
2012
 
2011
 
2010
Discount rate
 
4.47
%
 
5.18
%
 
5.50
%
Rate of compensation increase
 
3.00
%
 
3.00
%
 
3.00
%
Schedule of estimated future pension benefit Payments
The estimated future pension benefit payments reflecting expected future service for the next ten years are shown below (in thousands):
2013
$
6,431

2014
6,163

2015
6,623

2016
6,619

2017
7,233

2018-2022
41,653

Total
$
74,722
Schedule of balances of accumulated other comprehensive income loss
The following table shows ending balances of accumulated other comprehensive loss at December 31, 2012 and 2011.
 
(In thousands)
 
2012
 
2011
Prior service cost
 
$
(54
)
 
$
(74
)
Net actuarial loss
 
(41,691
)
 
(32,163
)
Total
 
(41,745
)
 
(32,237
)
Deferred taxes
 
14,611

 
11,283

Accumulated other comprehensive loss
 
$
(27,134
)
 
$
(20,954
)
Schedule of components of net periodic benefit cost and other amounts recognized in other comprehensive income (loss)
Using an actuarial measurement date of December 31 for 2012, 2011 and 2010, components of net periodic benefit cost and other amounts recognized in other comprehensive loss were as follows:
 
(In thousands)
 
2012
 
2011
 
2010
Components of net periodic benefit cost and other amounts recognized in other comprehensive (Loss)
 
 
 
 
 
 
Service cost
 
$
(4,271
)
 
$
(4,557
)
 
$
(3,671
)
Interest cost
 
(4,048
)
 
(3,967
)
 
(3,583
)
Expected return on plan assets
 
8,742

 
7,543

 
5,867

Amortization of prior service cost
 
(20
)
 
(19
)
 
(22
)
Recognized net actuarial loss
 
(1,708
)
 
(1,411
)
 
(1,079
)
Net periodic benefit cost
 
$
(1,305
)
 
$
(2,411
)
 
$
(2,488
)
Change to net actuarial (loss)/gain for the period
 
$
(11,236
)
 
$
(9,164
)
 
$
(4,835
)
Amortization of prior service cost
 
20

 
19

 
22

Amortization of net loss
 
1,708

 
1,411

 
1,079

Total recognized in other comprehensive (loss)/income
 
(9,508
)
 
(7,734
)
 
(3,734
)
Total recognized in net benefit cost and other comprehensive (loss)/income
 
$
(10,813
)
 
$
(10,145
)
 
$
(6,222
)
Schedule of assumptions used to determine costs
The weighted average assumptions used to determine net periodic benefit cost for the years ended December 31, 2012, 2011 and 2010 are listed below:
 
 
 
2012
 
2011
 
2010
Discount Rate
 
5.18
%
 
5.50
%
 
6.00
%
Rate of compensation increase
 
3.00
%
 
3.00
%
 
3.00
%
Expected long-term return on plan assets
 
7.75
%
 
7.75
%
 
7.75
%