Condensed Consolidated Statement of CashFlows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Operating activities:
Net income	$ 151,123	$ 107,738
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	105,319	99,222
Deferred income taxes	2,717	5,035
Stock based compensation	5,845	6,470
Change in LIFO inventory reserve	(54,464)	(37,033)
Amortization of unrecognized postretirement benefits	27,014	39,133
Changes in operating assets and liabilities:
Accounts and notes receivable	(187,541)	(40,049)
Inventories	(35,518)	15,210
Other current assets	(2,681)	(15,878)
Accounts payable	58,482	(77,932)
Accrued liabilities	52,519	53,053
Other items	(24,825)	(31,857)
Net cash provided by operating activities	97,990	123,112
Investing activities:
Additions to property, plant and equipment and capitalized software	(112,126)	(135,412)
Proceeds from the sale of assets	1,089	532
Net cash used in investing activities	(111,037)	(134,880)
Financing activities:
Net issuance of (payments on) short-term debt	163,473	(6,864)
Additions to long-term debt	15,634	24,527
Repayments on long-term debt	(13,363)	(18,657)
Accelerated share repurchase program	(200,000)
Payment of dividends to noncontrolling shareholders	(2,570)	(9,790)
Payment of dividends	(19,432)	(19,950)
Issuance of common shares and excess tax benefits on options	3,890	1,869
Net cash used in financing activities	(52,368)	(28,865)
Effects of exchange rate changes on cash	3,462	(1,379)
Changes in cash and cash equivalents	(61,953)	(42,012)
Cash and cash equivalents at beginning of year	397,731	351,817
Cash and cash equivalents at end of period	$ 335,778	$ 309,805