Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows provided by (used in) operating activities:
Net income	$ 158,970	$ 185,802
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	156,780	146,246
Rationalization charges	48,594	1,483
Stock compensation expense	12,669	11,162
Loss on early extinguishment of debt	1,676	2,493
Other changes that provided (used) cash:
Trade accounts receivable, net	(250,783)	(271,636)
Inventories	(75,414)	(32,743)
Trade accounts payable	(63,609)	(11,185)
Accrued liabilities	(10,475)	(11,227)
Other, net	19,181	(7,304)
Net cash (used in) provided by operating activities	(2,411)	13,091
Cash flows provided by (used in) investing activities:
Capital expenditures	(166,848)	(134,636)
Other, net	509	236
Net cash used in investing activities	(166,339)	(134,400)
Cash flows provided by (used in) financing activities:
Borrowings under revolving loans	1,139,329	923,639
Repayments under revolving loans	(464,759)	(266,477)
Repayments of long-term debt	(308,161)	(286,200)
Changes in outstanding checks - principally vendors	(83,670)	(87,795)
Dividends paid on common stock	(38,615)	(33,843)
Debt issuance costs	0	(2,866)
Repurchase of common stock under stock plan	(27,364)	(3,057)
Net cash provided by financing activities	216,760	243,401
Effect of exchange rate changes on cash and cash equivalents	(3,440)	(4,256)
Cash and cash equivalents:
Net increase	44,570	117,836
Balance at beginning of year	72,819	53,533
Balance at end of period	117,389	171,369
Interest paid, net	97,630	104,040
Income taxes paid, net	$ 31,067	$ 39,400