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Benefit Plans 6 (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Pension Benefits [Member]
 
Estimated future benefit payments  
2014 $ 7,000
2015 6,700
2016 5,600
2017 1,800
2018 2,300
2019 through 2023 12,500
Retiree Health Care Benefits [Member]
 
Estimated future benefit payments  
2014 250
2015 230
2016 250
2017 330
2018 400
2019 through 2023 $ 1,470