CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Activities:
Net income	$ 46,320	$ 53,412	$ 38,305
Income from discontinued operations	0	0	(102)
Adjustments to reconcile net income to cash from operating activities:
Depreciation and amortization	34,054	26,268	26,351
Stock-based compensation expense	9,643	7,533	5,393
Deferred income taxes	3,668	8,435	5,927
Equity in income of unconsolidated joint ventures, net	(2,890)	(4,123)	(4,326)
Dividends received from unconsolidated joint ventures	3,463	3,849	5,162
Pension and postretirement benefits	(1,512)	1,976	5,118
Loss from the sale of property, plant and equipment	295	(69)	(7)
Impairment of assets/investments	150		4,620
Loss on disposition of a business	4,819	0	0
Changes in operating assets and liabilities excluding effects of acquisition and disposition of businesses:
Accounts receivable	10,056	(10,188)	(2,727)
Inventories	(10,608)	(6,054)	6,351
Pension contribution	(7,737)	(14,645)	(13,751)
Other current assets	(1,278)	1,063	639
Accounts payable and other accrued expenses	(17,632)	16,638	9,020
Other, net	3,111	1,112	(8,806)
Net cash provided by operating activities of continuing operations	73,922	85,207	77,167
Net cash provided by operating activities of discontinued operations		0	848
Net cash provided by operating activities	73,922	85,207	78,015
Investing Activities:
Capital expenditures	(24,837)	(28,755)	(16,859)
Proceeds from life insurance	2,682	0	0
Loss from the sale of property, plant and equipment, net	0	69	7
Other investing activities	(1,000)	166	(127)
Proceeds from the sale of a business	1,300	0	0
Acquisition of business, net of cash received	(158,407)	0	0
Net cash used in investing activities	(180,297)	(28,520)	(16,979)
Financing Activities:
Proceeds from long term borrowings	125,000	0	0
Repayment of debt principal and long term lease obligation	(6,641)	(17,797)	(21,206)
Debt issuance costs	(293)	0	0
Repurchases of capital stock	(39,993)	0	0
Proceeds from issuance of capital stock, net	6,967	20,513	32,426
Issuance of restricted stock	(2,740)	(1,542)	(1,297)
Proceeds from issuance of shares to employee stock purchase plan	727	693	734
Net cash provided by financing activities	83,027	1,867	10,657
Effect of exchange rate fluctuations on cash	(9,441)	(13,063)	5,328
Net (decrease) increase in cash and cash equivalents	(32,789)	45,491	77,021
Cash and cash equivalents at beginning of year	237,375	191,884	114,863
Cash and cash equivalents at end of year	$ 204,586	$ 237,375	$ 191,884