CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating Activities:
Net income	$ 36,370	$ 39,742
Adjustments to reconcile net income to cash from operating activities:
Depreciation and amortization	27,635	25,209
Stock-based compensation expense	8,537	7,734
Deferred income taxes	9,594	2,668
Equity in undistributed income of unconsolidated joint ventures	(2,220)	(2,187)
Dividends received from unconsolidated joint ventures	426	780
Pension and postretirement benefits	(2,121)	(858)
Loss (gain) from the sale of property, plant and equipment	219	8
Changes in operating assets and liabilities, excluding effects of acquisitions:
Accounts receivable	(9,316)	2,038
Inventories	6,536	(12,039)
Pension contribution	(274)	(6,500)
Other current assets	227	187
Accounts payable and other accrued expenses	15,125	(12,037)
Other, net	3,485	816
Net cash provided by operating activities	94,223	45,561
Investing Activities:
Business acquisition, net of cash acquired	0	(158,407)
Capital expenditures, net	(14,926)	(21,574)
Proceeds from life insurance		2,682
Proceeds from the sale of property, plant and equipment, net	0	(8)
Net cash used in investing activities	(14,926)	(177,307)
Financing Activities:
Proceeds from long term borrowings		125,000
Debt issuance costs	0	293
Repayment of debt principal and long term lease obligation	(102,580)	(5,886)
Repurchases of capital stock	(7,995)	(32,996)
Proceeds from the exercise of stock options, net	2,058	6,539
Issuance of restricted stock shares	(1,288)	(2,405)
Proceeds from issuance of shares to employee stock purchase plan	858	727
Net cash (used in) provided by financing activities	(108,947)	90,686
Effect of exchange rate fluctuations on cash	(1,420)	(3,709)
Net increase (decrease) in cash and cash equivalents	(31,070)	(44,769)
Cash and cash equivalents at beginning of period	204,586	237,375
Cash and cash equivalents at end of period	$ 173,516	$ 192,606