v2.4.0.6
EMPLOYEE RETIREMENT PLANS (Details 2) (Pension Benefits, USD $)
In Thousands, unless otherwise specified
12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
Short-term investment funds
Dec. 31, 2011
Short-term investment funds
Dec. 31, 2012
U.S. equity securities
Dec. 31, 2011
U.S. equity securities
Dec. 31, 2012
Consumer Discretionary Sector
Dec. 31, 2011
Consumer Discretionary Sector
Dec. 31, 2012
Consumer Staples Sector
Dec. 31, 2011
Consumer Staples Sector
Dec. 31, 2012
Energy Sector
Dec. 31, 2011
Energy Sector
Dec. 31, 2012
Financial Sector
Dec. 31, 2012
Health Care Sector
Dec. 31, 2011
Health Care Sector
Dec. 31, 2012
Industrials Sector
Dec. 31, 2011
Industrials Sector
Dec. 31, 2012
Information Technology Sector
Dec. 31, 2011
Information Technology Sector
Dec. 31, 2012
Capital appreciation mutual fund
Dec. 31, 2011
Capital appreciation mutual fund
Dec. 31, 2012
SMALL cap growth mutual fund
Dec. 31, 2011
SMALL cap growth mutual fund
Dec. 31, 2012
Pooled equity fund
Dec. 31, 2011
Pooled equity fund
Dec. 31, 2012
Other
Dec. 31, 2011
Other
Dec. 31, 2012
International equity securities
Dec. 31, 2011
International equity securities
Dec. 31, 2012
EUROPACIFIC GROWTH fund
Dec. 31, 2011
EUROPACIFIC GROWTH fund
Dec. 31, 2012
Consumer Staples Sector
Dec. 31, 2011
Consumer Staples Sector
Dec. 31, 2012
Emerging markets fund
Dec. 31, 2011
Emerging markets fund
Dec. 31, 2011
Information Technology Sector
Dec. 31, 2012
Fixed income securities
Dec. 31, 2011
Fixed income securities
Dec. 31, 2012
Pimco Total Return INSTL
Dec. 31, 2011
Pimco Total Return INSTL
Dec. 31, 2012
Financial Services Sector
Dec. 31, 2011
Financial Services Sector
Dec. 31, 2012
Long-biased hedge fund
Dec. 31, 2011
Long-biased hedge fund
Dec. 31, 2012
Real Estate Partnership
Dec. 31, 2011
Real Estate Partnership
Dec. 31, 2011
Other securities
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
U.S. equity securities
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
U.S. equity securities
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Consumer Discretionary Sector
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Consumer Discretionary Sector
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Consumer Staples Sector
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Consumer Staples Sector
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Energy Sector
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Energy Sector
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Financial Sector
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Health Care Sector
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Health Care Sector
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Industrials Sector
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Industrials Sector
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Information Technology Sector
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Information Technology Sector
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Capital appreciation mutual fund
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Capital appreciation mutual fund
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
SMALL cap growth mutual fund
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
SMALL cap growth mutual fund
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Other
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Other
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
International equity securities
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
International equity securities
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
EUROPACIFIC GROWTH fund
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
EUROPACIFIC GROWTH fund
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Consumer Staples Sector
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Consumer Staples Sector
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Emerging markets fund
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Information Technology Sector
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Fixed income securities
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Fixed income securities
Dec. 31, 2012
Quoted Prices in Active Markets for Assets (Level 1)
Pimco Total Return INSTL
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Pimco Total Return INSTL
Dec. 31, 2011
Quoted Prices in Active Markets for Assets (Level 1)
Other securities
Dec. 31, 2012
Significant Observable Inputs (Level 2)
Dec. 31, 2011
Significant Observable Inputs (Level 2)
Dec. 31, 2012
Significant Observable Inputs (Level 2)
Short-term investment funds
Dec. 31, 2011
Significant Observable Inputs (Level 2)
Short-term investment funds
Dec. 31, 2012
Significant Observable Inputs (Level 2)
Fixed income securities
Dec. 31, 2011
Significant Observable Inputs (Level 2)
Fixed income securities
Dec. 31, 2012
Significant Observable Inputs (Level 2)
Financial Services Sector
Dec. 31, 2011
Significant Observable Inputs (Level 2)
Financial Services Sector
Dec. 31, 2012
Significant Unobservable Inputs (Level 3)
Dec. 31, 2011
Significant Unobservable Inputs (Level 3)
Dec. 31, 2012
Significant Unobservable Inputs (Level 3)
U.S. equity securities
Dec. 31, 2011
Significant Unobservable Inputs (Level 3)
U.S. equity securities
Dec. 31, 2012
Significant Unobservable Inputs (Level 3)
Pooled equity fund
Dec. 31, 2011
Significant Unobservable Inputs (Level 3)
Pooled equity fund
Dec. 31, 2012
Significant Unobservable Inputs (Level 3)
Long-biased hedge fund
Dec. 31, 2011
Significant Unobservable Inputs (Level 3)
Long-biased hedge fund
Dec. 31, 2012
Significant Unobservable Inputs (Level 3)
Real Estate Partnership
Dec. 31, 2011
Significant Unobservable Inputs (Level 3)
Real Estate Partnership
Summary of the Plan's investments measured at fair value and the target and current allocation, by level within the fair value hierarchy                                                                                                                                                                                                            
Target Allocation (as a percent)           43.00% 43.00%                                           20.00% 20.00%         5.00% 5.00%   20.00% 20.00%         10.00% 10.00% 2.00% 2.00%                                                                                                              
Fair value of plan assets (in dollars) $ 115,830 $ 107,738 $ 122,509 $ 2,190 $ 1,547 $ 47,672 $ 47,781 $ 1,734 $ 2,921 $ 4,151 $ 4,475 $ 1,158 $ 1,638 $ 581 $ 2,985 $ 3,276 $ 1,130 $ 1,471 $ 4,390 $ 4,258 $ 6,365 $ 5,502 $ 5,129 $ 6,456 $ 19,200 $ 17,308 $ 849 $ 476 $ 30,715 $ 21,214 $ 24,981 $ 20,955 $ 394 $ 258 $ 5,340   $ 1 $ 23,076 $ 25,248 $ 22,899 $ 25,184 $ 177 $ 64 $ 10,579 $ 10,359 $ 1,598 $ 1,447 $ 142 $ 82,086 $ 77,013 $ 28,472 $ 30,473 $ 1,734 $ 2,921 $ 4,151 $ 4,475 $ 1,158 $ 1,638 $ 581 $ 2,985 $ 3,276 $ 1,130 $ 1,471 $ 4,390 $ 4,258 $ 6,365 $ 5,502 $ 5,129 $ 6,456 $ 849 $ 476 $ 30,715 $ 21,214 $ 24,981 $ 20,955 $ 394 $ 258 $ 5,340 $ 1 $ 22,899 $ 25,184 $ 22,899 $ 25,184 $ 142 $ 2,367 $ 1,611 $ 2,190 $ 1,547 $ 177 $ 64 $ 177 $ 64 $ 31,377 $ 29,114 $ 19,200 $ 17,308 $ 19,200 $ 17,308 $ 10,579 $ 10,359 $ 1,598 $ 1,447
Percentage of Assets       2.00% 1.00% 41.00% 45.00%                                           27.00% 20.00%         5.00%     20.00% 23.00%         9.00% 10.00% 1.00% 1.00%