Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Amortization of prior service credit included in net periodic cost, tax effect	$ (848)	$ (867)	$ (1,697)	$ (1,734)
Amortization of actuarial loss included in net periodic cost, tax effect	$ 1,900	$ 1,568	$ 3,837	$ 3,245