Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Income	$ 28,930	$ 28,664
Other Comprehensive Income (Loss), net of tax:
Amortization of prior service cost, net of tax of $(5), and $(5), respectively	(14)	(14)
Net gain, net of tax of $28, and $42, respectively	80	121
Cash Flow Hedges, net of tax:
Unrealized gain on commodity contract cash flow hedges, net of tax of $2, and $1,194, respectively	7	2,982
Total Other Comprehensive Income, net of tax	73	3,089
Comprehensive Income	$ 29,003	$ 31,753