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Consolidated Statement of Comprehensive Income Parentheticals (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Consolidated Statement of Comprehensive Income
Amortization of defined benefit plan deferred losses, tax	$ 100,000	$ 60,000
Amortization of unrealized loss on derivative instruments, tax	$ 400,000	$ 300,000

Tax effect of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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