CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 176,025	$ 185,113
Accounts receivable, net	176,336	146,383
Inventories	145,371	106,406
Income taxes prepaid and receivable	1,230	2,927
Asset held for sale	5,078	4,988
Prepaid expenses and other current assets	9,582	6,243
Total current assets	513,622	452,060
Property, plant and equipment, net	440,175	357,470
Intangibles, net	58,325	154
Goodwill	98,566	66,373
Income taxes receivable and deferred	110,263	108,945
Other assets	28,379	24,560
Total assets	1,249,330	1,009,562
Current liabilities:
Notes and loans payable	531	587
Accounts payable	40,608	26,753
Accrued liabilities	87,388	91,785
Current maturities of long-term debt	566	16
Income taxes payable	7,078	7,090
Total current liabilities	136,171	126,231
Long-term debt	485,215	265,080
Other noncurrent liabilities	99,590	101,544
Deferred taxes and other liabilities	12,760	14,154
Total liabilities	733,736	507,009
SHAREHOLDERS' EQUITY
Preferred stock, par value $5.00 per share; authorized 2,000,000 shares; none issued
Additional paid in capital	424,921	423,108
Retained earnings	504,907	491,950
Accumulated items of other comprehensive income:
Translation adjustments	(106,262)	(108,655)
Pension and postretirement liability adjustments	(48,364)	(48,725)
Derivative valuation adjustment	(5,709)	(1,464)
Treasury stock (Class A), at cost 8,445,342 shares in 2016 and 8,455,293 shares in 2015	(257,177)	(257,391)
Total Company shareholders' equity	512,356	498,863
Noncontrolling interest	3,238	3,690
Total equity	515,594	502,553
Total liabilities and shareholders' equity	1,249,330	1,009,562
Common Class A [Member]
SHAREHOLDERS' EQUITY
Common Stock	37	37
Common Class B [Member]
SHAREHOLDERS' EQUITY
Common Stock	$ 3	$ 3