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Benefit plans
12 Months Ended
Dec. 31, 2011
Benefit plans [Abstract]  
Benefit plans
13.
Benefit plans

We have a non-contributory defined benefit pension plan covering substantially all domestic employees, as well as a supplemental executive retirement plan. We also offer both medical and dental benefits for retired domestic employees and their spouses under a postretirement benefit plan. In October 2008 we amended our postretirement benefit plan. The amendment, which was effective January 1, 2009, terminated the benefits provided to retirees once they reach the age of 65. This amendment reduced our accumulated postretirement benefit obligation as of December 31, 2008. The benefit from this amendment was amortized to net periodic benefit cost in 2009 and future periods. The following tables provide the components of aggregate annual net periodic benefit cost, changes in the benefit obligation and the funded status of the pension, supplemental executive retirement and other postretirement benefit plans as recognized in the consolidated balance sheet:

   
Pension and Supplemental
  
Other Postretirement
 
   
Executive Retirement Plans
  
Benefits
 
Components of Net Periodic Benefit Cost for fiscal year ending
 
   
12/31/2011
  
12/31/2010
  
12/31/2009
  
12/31/2011
  
12/31/2010
  
12/31/2009
 
   
(In thousands)
 
1. Company Service Cost
 $8,917  $8,531  $8,154  $1,090  $1,126  $1,280 
2. Interest Cost
  16,098   15,535   14,300   1,350   1,183   1,463 
3. Expected Return on Assets
  (17,373)  (14,502)  (15,340)  (3,299)  (2,891)  (2,229)
4. Other Adjustments
  -   -   -   -   -   - 
Subtotal
  7,642   9,564   7,114   (859)  (582)  514 
5. Amortization of :
                        
a. Net Transition Obligation/(Asset)
  -   -   -   -   -   - 
b. Net Prior Service Cost/(Credit)
  661   650   716   (6,217)  (6,138)  (6,059)
c. Net Losses/(Gains)
  4,010   5,924   6,330   632   764   1,704 
Total Amortization
  4,671   6,574   7,046   (5,585)  (5,374)  (4,355)
6. Net Periodic Benefit Cost
  12,313   16,138   14,160   (6,445)  (5,956)  (3,841)
7. Cost of settlements or curtailments
  -   -   -   -   -   - 
8. Total Expense for Year
 $12,313  $16,138  $14,160  $(6,445) $(5,956) $(3,841)


Development of Funded Status
 
   
Pension and Supplemental
  
Other Postretirement
 
   
Executive Retirement Plans
  
Benefits
 
   
12/31/2011
  
12/31/2010
  
12/31/2011
  
12/31/2010
 
   
(In thousands)
 
              
Actuarial Value of Benefit Obligations
            
1. Measurement Date
 
12/31/2011
  
12/31/2010
  
12/31/2011
  
12/31/2010
 
2. Accumulated Benefit Obligation
 $297,145  $270,684  $25,007  $26,200 
                  
Funded Status/Asset (Liability) on the Consolidated Balance Sheet
                
1. Projected Benefit Obligation
 $(318,048) $(291,456) $(25,007) $(26,200)
2. Plan Assets at Fair Value
  305,748   284,080   42,578   44,362 
3. Funded Status - Overfunded/Asset
  N/A   N/A  $17,571  $18,162 
4. Funded Status - Underfunded/Liability
 $(12,300) $(7,376)  N/A   N/A 
 
Accumulated Other Comprehensive Income
 
   
12/31/2011
  
12/31/2010
  
12/31/2011
  
12/31/2010
 
   
(In thousands)
 
1. Net Actuarial (Gain)/Loss
 $95,298  $81,802  $14,109  $13,463 
2. Net Prior Service Cost/(Credit)
  2,278   2,847   (41,072)  (47,290)
3. Net Transition Obligation/(Asset)
  -   -   -   - 
4. Total at Year End
 $97,576  $84,649  $(26,964) $(33,827)

The changes in the projected benefit obligation are as follows:

   
Pension and Supplemental
  
Other Postretirement
 
   
Executive Retirement Plans
  
Benefits
 
Change in Projected Benefit Obligation
    
   
12/31/2011
  
12/31/2010
  
12/31/2011
  
12/31/2010
 
   
(In thousands)
 
1. Benefit Obligation at Beginning of Year
 $291,456  $258,592  $26,200  $24,144 
2. Company Service Cost
  8,917   8,531   1,090   1,126 
3. Interest Cost
  16,098   15,535   1,350   1,183 
4. Plan Participants' Contributions
  -   -   261   327 
5. Net Actuarial (Gain)/Loss due to Assumption Changes
  23,037   10,425   397   (2,925)
6. Net Actuarial (Gain)/Loss due to Plan Experience
  (6,544)  3,624   (3,643)  3,695 
7. Benefit Payments from Fund (1)
  (14,692)  (5,769)  (560)  (510)
8. Benefit Payments Directly by Company
  (316)  (231)  (87)  (120)
9. Plan Amendments
  92   749   -   (720)
10. Other Adjustment
  -   -   -   - 
11. Benefit Obligation at End of Year
 $318,048  $291,456  $25,007  $26,200 

(1) In 2011, includes lump sum payments of $8.2 million from our pension plan to eligible participants, which were former employees with vested benefits of $50 thousand or less. Additional former employees may elect this option in 2012.

The changes in the fair value of the net assets available for plan benefits are as follows:

Change in Plan Assets
 
   
12/31/2011
  
12/31/2010
  
12/31/2011
  
12/31/2010
 
   
(In thousands)
 
1. Fair Value of Plan Assets at Beginning of Year
 $284,080  $243,369  $44,362  $38,920 
2. Company Contributions
  20,316   15,231   -   - 
3. Plan Participants' Contributions
  -   -   261   327 
4. Benefit Payments from Fund
  (14,692)  (5,769)  (560)  (510)
5. Benefit Payments paid directly by Company
  (316)  (231)  (87)  (120)
6. Actual Return on Assets
  16,360   31,480   (1,224)  5,951 
7. Other Adjustment
  -   -   (173)  (207)
8. Fair Value of Plan Assets at End of Year
 $305,748  $284,080  $42,578  $44,361 
 
   
Pension and Supplemental
 
Other Postretirement
 
   
Executive Retirement Plans
 
Benefits
 
Change in Accumulated Other Comprehensive Income (AOCI)
 
   
12/31/2011
  
12/31/2010
  
12/31/2011
  
12/31/2010
 
   
(In thousands)
 
1. AOCI in Prior Year
 $84,649  $93,403  $(33,827) $(36,190)
2. Increase/(Decrease) in AOCI
                
a. Recognized during year - Prior Service (Cost)/Credit
  (661)  (650)  6,217   6,138 
b. Recognized during year - Net Actuarial (Losses)/Gains
  (4,010)  (5,924)  (632)  (764)
c. Occurring during year - Prior Service Cost
  92   749   -   (720)
d. Occurring during year - Net Actuarial Losses/(Gains)
  17,507   (2,929)  1,278   (2,291)
3. AOCI in Current Year
 $97,576  $84,649  $(26,964) $(33,827)


Amortizations Expected to be Recognized During Next Fiscal Year Ending
 
   
12/31/2012
  
12/31/2012
 
   
(In thousands)
 
1. Amortization of Net Transition
      
Obligation/(Asset)
 $-  $- 
2. Amortization of Prior Service Cost/(Credit)
  643   (6,217)
3. Amortization of Net Losses/(Gains)
  5,911   842 

The projected benefit obligations, net periodic benefit costs and accumulated postretirement benefit obligation for the plans were determined using the following weighted average assumptions.

   
Pension and Supplemental
  
Other Postretirement
 
   
Executive Retirement Plans
  
Benefits
 
Actuarial Assumptions
 
   
12/31/2011
  
12/31/2010
  
12/31/2011
  
12/31/2010
 
Weighted-Average Assumptions Used to Determine Benefit Obligations at year end
 
1. Discount Rate
  5.25%  5.75%  4.75%  5.50%
2. Rate of Compensation Increase
  3.00%  3.00%  N/A   N/A 
                  
Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost for Year
 
1. Discount Rate
  5.75%  6.00%  5.50%  5.75%
2. Expected Long-term Return on Plan Assets
  6.00%  6.00%  7.50%  7.50%
3. Rate of Compensation Increase
  3.00%  3.00%  N/A   N/A 
                  
Assumed Health Care Cost Trend Rates at year end
 
1. Health Care Cost Trend Rate Assumed for Next Year
  N/A   N/A   8.00%  8.50%
2. Rate to Which the Cost Trend Rate is Assumed to Decline (Ultimate Trend Rate)
  N/A   N/A   5.00%  5.00%
3. Year That the Rate Reaches the Ultimate Trend Rate
  N/A   N/A   2018   2018 

In selecting a discount rate, we performed a hypothetical cash flow bond matching exercise, matching our expected pension plan and postretirement medical plan cash flows, respectively, against a selected portfolio of high quality corporate bonds. The modeling was performed using a bond portfolio of noncallable bonds with at least $50 million outstanding. The average yield of these hypothetical bond portfolios was used as the benchmark for determining the discount rate. In selecting the expected long-term rate of return on assets, we considered the average rate of earnings expected on the classes of funds invested or to be invested to provide for the benefits of these plans. This included considering the trusts' targeted asset allocation for the year and the expected returns likely to be earned over the next 20 years.
 
The weighted-average asset allocations of the plans are as follows:

         
Other Postretirement
 
   
Pension Plan
  
Benefits
 
Plan Assets
            
   
12/31/2011
  
12/31/2010
  
12/31/2011
  
12/31/2010
 
Allocation of Assets at year end
 
1. Equity Securities
  38%  38%  100%  100%
2. Debt Securities
  62%  62%  0%  0%
3. Other
  0%  0%  0%  0%
4. Total
  100%  100%  100%  100%

In accordance with fair value guidance, we applied the following fair value hierarchy in order to measure fair value of our benefit plan assets:

Level 1 – Quoted prices for identical instruments in active markets that we have the ability to access. Financial assets utilizing Level 1 inputs include equity securities, mutual funds, money market funds and certain U.S. Treasury securities and obligations of U.S. government corporations and agencies.

Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and inputs, other than quoted prices, that are observable in the marketplace for the financial instrument. The observable inputs are used in valuation models to calculate the fair value of the financial instruments. Financial assets utilizing Level 2 inputs include certain municipal, corporate and foreign bonds.

Level 3 – Valuations derived from valuation techniques in which one or more significant inputs or value drivers are unobservable. Level 3 inputs reflect our own assumptions about the assumptions a market participant would use in pricing an asset or liability. There are no securities that utilize Level 3 inputs.

To determine the fair value of securities in Level 1 and Level 2 of the fair value hierarchy, independent pricing sources have been utilized. One price is provided per security based on observable market data. To ensure securities are appropriately classified in the fair value hierarchy, we review the pricing techniques and methodologies of the independent pricing sources and believe that their policies adequately consider market activity, either based on specific transactions for the issue valued or based on modeling of securities with similar credit quality, duration, yield and structure that were recently traded. A variety of inputs are utilized including benchmark yields, reported trades, non-binding broker/dealer quotes, issuer spreads, two sided markets, benchmark securities, bids, offers and reference data including market research publications. Inputs may be weighted differently for any security, and not all inputs are used for each security evaluation. Market indicators, industry and economic events are also considered. This information is evaluated using a multidimensional pricing model. In addition, on a quarterly basis, we perform quality controls over values received from the pricing source (the “Trustee”) which include comparing values to other independent pricing sources. In addition, we review annually the Trustee's auditor's report on internal controls in order to determine that their controls around valuing securities are operating effectively. We have not made any adjustments to the prices obtained from the independent sources.
 
The following table sets forth by level, within the fair value hierarchy, the pension plan assets at fair value as of December 31, 2011.

Assets at Fair Value as of December 31, 2011

Pension Plan
 
Level 1
  
Level 2
  
Level 3
  
Total
 
   
(In thousands)
 
Domestic Mutual Funds
 $58,699  $-  $-  $58,699 
International Mutual Funds
  32,664   -   -   32,664 
Common Stocks
  45,770   -   -   45,770 
Corporate Bonds
  -   118,575   -   118,575 
U.S. Government Securities
  13,137   -   -   13,137 
Municipals
  -   18,362   -   18,362 
Foreign Bonds
  -   15,411   -   15,411 
Foreign Stocks
  3,130   -   -   3,130 
Total Assets at fair value
 $153,400  $152,348  $-  $305,748 

Our pension plan portfolio is designed to achieve the following objectives over each market cycle and for at least 5 years:

Fixed income allocation

 
·
Protect actuarial benefit payment stream through asset liability matching
 
·
Reduce volatility of investment returns compared to actuarial benefit liability

Equity allocation

 
·
Protect long tailed liabilities through the use of equity portfolio
 
·
Achieve competitive investment results

The primary focus in developing asset allocation ranges for the portfolio is the assessment of the portfolio's investment objectives and the level of risk that is acceptable to obtain those objectives. To achieve these goals the minimum and maximum allocation ranges for fixed income securities and equity securities are:

   
Minimum
  
Maximum
 
Fixed income
  40%  100%
Equity
  0%  60%
Cash equivalents
  0%  10%
 
The following table sets forth by level, within the fair value hierarchy, the postretirement plan assets at fair value as of December 31, 2011.

Assets at Fair Value as of December 31, 2011

Postretirement Plan
 
Level 1
  
Level 2
  
Level 3
  
Total
 
   
(In thousands)
 
Domestic Mutual Funds
 $30,229  $-  $-  $30,229 
International Mutual Funds
  12,349   -   -   12,349 
 Total Assets at fair value
 $42,578  $-  $-  $42,578 

Our postretirement plan portfolio is designed to achieve the following objectives over each market cycle and for at least 5 years:

 
·
Total return should exceed growth in the Consumer Price Index
 
·
Achieve competitive investment results

The primary focus in developing asset allocation ranges for the portfolio is the assessment of the portfolio's investment objectives and the level of risk that is acceptable to obtain those objectives. To achieve these goals the minimum and maximum allocation ranges for fixed income securities and equity securities are:

   
Minimum
  
Maximum
 
Fixed income
  0%  10%
Equity
  90%  100%

Given the long term nature of this portfolio and the lack of any immediate need for significant cash flow, it is anticipated that the equity investments will consist of growth stocks and will typically be at the higher end of the allocation ranges above.

Investment in international oriented funds is limited to a maximum of 30% of the equity range. The current international allocation is invested in two mutual funds with 5% of the equity allocation in a fund which has the objective of investments primarily in equity securities of emerging markets countries, and 25% of the equity allocation in a fund investing in securities of companies based outside the United States. It invests in companies primarily based in Europe and the Pacific Basin, and includes common and preferred stocks, convertibles, ADR's, EDR's, bonds and cash. In addition to the foreign mutual funds, separately managed accounts have investments in equity securities of foreign corporations, and fixed income securities issued by foreign entities.
 
The following tables show the estimated future contributions and estimated future benefit payments.

   
Pension and Supplemental
  
Other Postretirement
 
   
Executive Retirement Plans
  
Benefits
 
Company Contributions
      
   
12/31/2011
  
12/31/2011
 
   
(In thousands)
 
Company Contributions for the Year Ending:
 
1. Current
 $20,316  $- 
2. Current + 1
  984   - 


Benefit Payments (Total)
      
   
12/31/2011
  
12/31/2011
 
   
(In thousands)
 
Actual Benefit Payments for the Year Ending:
 
1. Current
 $15,008  $387 
Expected Benefit Payments for the Year Ending:
 
2. Current + 1
  10,377   907 
3. Current + 2
  11,383   1,033 
4. Current + 3
  14,051   1,227 
5. Current + 4
  14,194   1,318 
6. Current + 5
  15,098   1,472 
7. Current + 6 - 10
  95,553   10,686 

Health care sensitivities
For measurement purposes, an 8.0% health care trend rate was used for benefits for retirees before they reach age 65 for 2011. In 2012, the rate is assumed to be 8.0%, decreasing to 5.0% by 2018 and remaining at this level beyond.

Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plan. A 1% change in the health care trend rate assumption would have the following effects on other postretirement benefits:

   
1-Percentage
  
1-Percentage
 
   
Point Increase
  
Point Decrease
 
   
(In thousands)
 
        
Effect on total service and interest cost components
 $573  $(408)
Effect on postretirement benefit obligation
  4,463   (3,490)

We have a profit sharing and 401(k) savings plan for employees. At the discretion of the Board of Directors, we may make a profit sharing contribution of up to 5% of each participant's eligible compensation. We provide a matching 401(k) savings contribution on employees' before-tax contributions at a rate of 80% of the first $1,000 contributed and 40% of the next $2,000 contributed. We recognized profit sharing expense and 401(k) savings plan expense of $3.6 million, $3.7 million and $3.1 million in 2011, 2010 and 2009, respectively.