XML 89 R113.htm IDEA: XBRL DOCUMENT v2.4.0.6
Employee Benefit Plans (Details 6) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Pension Plans, Defined Benefit [Member]
      
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]      
Defined Benefit Plan, Service Cost $ 7,531,000 $ 5,985,000 $ 4,762,000
Defined Benefit Plan, Interest Cost 4,072,000 3,916,000 3,420,000
Defined Benefit Plan, Expected Return on Plan Assets 3,066,000 2,937,000 2,577,000
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 376,000 399,000 (171,000)
Defined Benefit Plan, Amortization of Gains (Losses) (3,439,000) (980,000) (688,000)
DefinedBenefitPlanRecognizedNetGainLossDueToSettlements 841,000 0 0
Defined Benefit Plan, Net Periodic Benefit Cost, Total 13,193,000 8,343,000 6,122,000
Other Postretirement Benefit Plans, Defined Benefit [Member]
      
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]      
Defined Benefit Plan, Service Cost 1,641,000 1,116,000 847,000
Defined Benefit Plan, Interest Cost 1,246,000 1,035,000 882,000
Defined Benefit Plan, Expected Return on Plan Assets 0 0 0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 0 0 0
Defined Benefit Plan, Amortization of Gains (Losses) (743,000) (353,000) (236,000)
DefinedBenefitPlanRecognizedNetGainLossDueToSettlements 0 0 0
Defined Benefit Plan, Net Periodic Benefit Cost, Total $ 3,630,000 $ 2,504,000 $ 1,965,000