CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Operating Activities:    
Net income $ 13,627 $ 14,580
Adjustments to reconcile net income to cash from operating activities:    
Depreciation and amortization 7,973 6,469
Stock-based compensation expense 1,598 1,758
Deferred income taxes 1,276 15
Equity in undistributed income of unconsolidated joint ventures (919) (977)
Dividends received from unconsolidated joint ventures 780 905
Pension and postretirement benefits (294) (642)
Gain from the sale of property, plant and equipment 0 (21)
Changes in operating assets and liabilities, excluding effects of acquisition of businesses:    
Accounts receivable, accounts receivable other and taxes receivable (5,299) (8,192)
Accounts receivable, joint ventures (333) 412
Inventories (6,664) 2,626
Pension contribution 0 (765)
Other current assets (3,431) (377)
Accounts payable and other accrued expenses 4,352 2,463
Other, net 243 (470)
Net cash provided by (used in) operating activities 12,909 17,784
Investing Activities:    
Acquisition of business, net of cash acquired (155,778) 0
Capital expenditures (8,486) (2,233)
Proceeds from the sale of property, plant and equipment, net 0 21
Net cash provided by (used in) investing activities (164,264) (2,212)
Financing Activities:    
Proceeds from long term borrowings 125,000 0
Repayment of debt principal and long term lease obligation (5,065) (3,826)
Proceeds from sale of capital stock, net 5,290 10,539
Issuance of restricted stock shares (2,258) (687)
Proceeds from issuance of shares to employee stock purchase plan 345 335
Net cash provided by (used in) financing activities 123,312 6,361
Effect of exchange rate fluctuations on cash (9,474) 2,641
Net increase (decrease) in cash and cash equivalents (37,517) 24,574
Cash and cash equivalents at beginning of year 237,375 191,884
Cash and cash equivalents at end of quarter $ 199,858 $ 216,458