CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 169,615	$ 185,113
Accounts receivable, net	150,821	146,383
Inventories	110,356	106,406
Income taxes prepaid and receivable	4,953	2,927
Asset held for sale	5,193	4,988
Prepaid expenses and other current assets	11,796	6,243
Total current assets	452,734	452,060
Property, plant and equipment, net	356,943	357,470
Intangibles	147	154
Goodwill	68,359	66,373
Income taxes receivable and deferred	108,123	108,945
Other assets	28,607	24,560
Total assets	1,014,913	1,009,562
Current liabilities:
Notes and loans payable	590	587
Accounts payable	31,865	26,753
Accrued liabilities	84,450	91,785
Current maturities of long-term debt	16	16
Income taxes payable	3,465	7,090
Total current liabilities	120,386	126,231
Long-term debt	255,076	265,080
Other noncurrent liabilities	102,689	101,544
Deferred taxes and other liabilities	14,057	14,154
Total liabilities	$ 492,208	$ 507,009
SHAREHOLDERS' EQUITY
Preferred stock, par value $5.00 per share; authorized 2,000,000 shares; none issued
Additional paid-in capital	$ 424,243	$ 423,108
Retained earnings	499,997	491,950
Accumulated items of other comprehensive income:
Translation adjustments	(95,541)	(108,655)
Pension and postretirement liability adjustments	(49,087)	(48,725)
Derivative valuation adjustment	(3,058)	(1,464)
Treasury stock (Class A), at cost; 8,455,293 shares in 2016 and in 2015	(257,391)	(257,391)
Total Company shareholders' equity	519,203	498,863
Noncontrolling interest	3,502	3,690
Total equity	522,705	502,553
Total liabilities and shareholders' equity	1,014,913	1,009,562
Common Class A [Member]
SHAREHOLDERS' EQUITY
Common Stock	37	37
Common Class B [Member]
SHAREHOLDERS' EQUITY
Common Stock	$ 3	$ 3