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Employee Benefits (Tables)
 12 Months Ended
Dec. 31, 2013
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan
Details of the changes in benefit obligations, plan assets and funded status of the Company's pension and post-retirement healthcare plans are as follows:
 
 
Pension Benefits
 
Post-retirement
Healthcare
 
 
2013
 
2012
 
2013
 
2012
Change in benefit obligation
 
 
 
 
 
 
 
 
Benefit obligation, beginning of year
 
$
65,313

 
$
59,876

 
$
21,383

 
$
20,212

Service cost
 
1,091

 
1,005

 
30

 
9

Interest cost
 
2,047

 
2,580

 
623

 
745

Actuarial (gain) loss
 
(8,163
)
 
9,481

 
(501
)
 
2,021

Benefits paid
 
(2,342
)
 
(2,145
)
 
(1,577
)
 
(1,604
)
Curtailment
 
—

 
(5,484
)
 
—

 
—

Benefit obligation, end of year
 
$
57,946

 
$
65,313

 
$
19,958

 
$
21,383

 
 
 
 
 
 
 
 
 
Change in plan assets
 
 
 
 
 
 
 
 
Fair value of plan assets, beginning of year
 
$
42,325

 
$
35,478

 
$
—

 
$
—

Actual return
 
7,159

 
4,207

 
—

 
—

Employer contribution
 
2,094

 
4,785

 
1,577

 
1,604

Benefits paid
 
(2,342
)
 
(2,145
)
 
(1,577
)
 
(1,604
)
Fair value of plan assets, end of year
 
$
49,236

 
$
42,325

 
$
—

 
$
—

Funded status, end of year
 
$
(8,710
)
 
$
(22,988
)
 
$
(19,958
)
 
$
(21,383
)
Schedule of Amounts Recognized in Balance Sheet

 
 
Pension Benefits
 
Post-retirement
Healthcare
 
 
2013
 
2012
 
2013
 
2012
Amounts recognized in the consolidated
   balance sheet at December 31
 
 
 
 
 
 
 
 
Current liabilities
 
$
—

 
$
—

 
$
(1,835
)
 
$
(1,753
)
Noncurrent liabilities
 
(8,710
)
 
(22,988
)
 
(18,123
)
 
(19,630
)
Net amount recognized
 
$
(8,710
)
 
$
(22,988
)
 
$
(19,958
)
 
$
(21,383
)
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)

 
 
Pension Benefits
 
Post-retirement
Healthcare
 
 
2013
 
2012
 
2013
 
2012
Amounts recognized in accumulated other
   comprehensive income
 
 
 
 
 
 
 
 
Net loss
 
$
6,404

 
$
20,831

 
$
4,484

 
$
5,358

Prior service cost
 
297

 
594

 
50

 
134

Total before tax (1)
 
$
6,701

 
$
21,425

 
$
4,534

 
$
5,492
Schedule Of Accumulated Benefit Obligations In Excess Of Plan Assets
Pension plans with an accumulated benefit obligation in excess of plan assets at December 31 are as follows:
 
 
Pension Benefits
 
 
2013
 
2012
Information for pension plans with an accumulated benefit obligation
   in excess of plan assets
 
 
 
 
Projected benefit obligation
 
$
(57,946
)
 
$
(65,313
)
Accumulated benefit obligation
 
(57,946
)
 
(65,074
)
Fair value of plan assets
 
49,236

 
42,325
Schedule Of Net Benefit Costs And Amounts Recognized In Other Comprehensive Income
 
 
Pension Benefits
 
Post-retirement Healthcare
 
 
Year Ended December 31,
 
Year Ended December 31,
 
 
2013
 
2012
 
2011
 
2013
 
2012
 
2011
Components of net periodic benefit cost
 
 
 
 
 
 
 
 
 
 
 
 
Service cost
 
$
1,091

 
$
1,005

 
$
930

 
$
30

 
$
9

 
$
16

Interest cost
 
2,047

 
2,580

 
2,723

 
623

 
745

 
840

Expected return on plan assets
 
(2,854
)
 
(2,490
)
 
(2,279
)
 
—

 
—

 
—

Net amortization
 
2,255

 
2,071

 
1,567

 
457

 
269

 
418

Net periodic benefit cost
 
$
2,539

 
$
3,166

 
$
2,941

 
$
1,110

 
$
1,023

 
$
1,274

 
 
 
 
 
 
 
 
 
 
 
 
 
Other changes in plan assets and
   benefit obligation recognized in
   other comprehensive income (OCI)
 
 
 
 
 
 
 
 
 
 
 
 
Net (gain) loss emerging
 
$
(12,468
)
 
$
7,765

 
$
5,804

 
$
(501
)
 
$
2,021

 
$
816

Curtailment
 
—

 
(5,484
)
 
—

 
—

 
—

 
—

Amortization of net loss
 
(1,958
)
 
(1,774
)
 
(1,271
)
 
(373
)
 
(185
)
 
(118
)
Amortization of transition obligation
 
—

 
—

 
—

 
—

 
—

 
(114
)
Amortization of prior service cost
 
(297
)
 
(297
)
 
(296
)
 
(84
)
 
(84
)
 
(186
)
Total recognized in OCI
 
$
(14,723
)
 
$
210

 
$
4,237

 
$
(958
)
 
$
1,752

 
$
398

Total net periodic benefit cost and OCI
 
$
(12,184
)
 
$
3,376

 
$
7,178

 
$
152

 
$
2,775

 
$
1,672
Schedule Of Weighted Average Assumptions Used
The weighted-average assumptions used to determine pension and post-retirement healthcare plan obligations and net periodic benefit costs for the plans are as follows:
 
 
Pension Benefits
 
Post-retirement Healthcare
 
 
2013
 
2012
 
2011
 
2013
 
2012
 
2011
Weighted average assumptions used to
   determine benefit obligations at
   December 31
 
 
 
 
 
 
 
 
 
 
 
 
Discount rate
 
4.5
%
 
3.3
%
 
4.5
%
 
4.0
%
 
3.0
%
 
4.0
%
Expected return on plan assets
 
7.0
%
 
7.0
%
 
7.0
%
 
—

 
—

 
—

Rate of compensation increase
 
4.0
%
 
4.0
%
 
4.0
%
 
—

 
—

 
—

Weighted average assumptions used to
   determine net periodic benefit costs for
   years ended December 31
 
 
 
 
 
 
 
 
 
 
 
 
Discount rate
 
3.3
%
 
4.5
%
 
5.3
%
 
3.0
%
 
4.0
%
 
4.5
%
Expected return on plan assets
 
7.0
%
 
7.0
%
 
7.0
%
 
—

 
—

 
—

Rate of compensation increase
 
4.0
%
 
4.0
%
 
4.0
%
 
—

 
—

 
—
Schedule Of Fair Value Of Pension Plan Assets
The investments in the bank collective trust funds are valued using a market approach based on the net asset value of units held. The fair values of the Company's pension plans assets at December 31, by asset category, are as follows:
 
 
2013
 
2012
 
 
Level 2
 
Total
 
Level 2
 
Level 3
 
Total
Bank collective trust funds—Equity securities:
 
 
 
 
 
 
 
 
 
 
Large-cap index funds (1)
 
$
17,079

 
$
17,079

 
$
20,822

 
$
—

 
$
20,822

Small-cap index funds (2)
 
3,091

 
3,091

 
2,817

 
—

 
2,817

International index funds (3)
 
7,482

 
7,482

 
4,077

 
—

 
4,077

Bank collective trust funds—Fixed income:
 
 
 
 
 
 
 
 
 
 
Bond index funds (4)
 
21,333

 
21,333

 
14,106

 
—

 
14,106

Short term investment funds
 
251

 
251

 
—

 
503

 
503

 
 
$
49,236

 
$
49,236

 
$
41,822

 
$
503

 
$
42,325


______________________________
(1)
Substantially all of the assets of these funds are invested in large-cap U.S. companies. The remainder of the assets of these funds is invested in cash reserves.
(2)
Substantially all of the assets of these funds are invested in small-cap U.S. companies. The remainder of the assets of these funds is invested in cash reserves.
(3)
Substantially all of the assets of these funds are invested in international companies in developed markets (excluding the U.S. and Canada). The remainder of the assets of these funds is invested in cash reserves.
(4)
This category represents investment grade bonds of U.S. issuers, including U.S. Treasury notes.
Schedule Of Estimated Future Benefit Payments
The following benefit payments are expected to be paid:
 
 
Pension
Benefits
 
Post-
retirement
Healthcare
Estimated future benefit payments:
 
 
 
 
Year 1
 
$
2,851

 
$
1,835

Year 2
 
3,127

 
2,018

Year 3
 
3,298

 
2,180

Year 4
 
3,424

 
2,146

Year 5
 
3,560

 
1,888

Years 6 to 10
 
19,157

 
6,050