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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2017 | Jun. 30, 2016
Operating Activities: |  |
Net income | $ 47,928 | $ 20,305
Adjustments to reconcile net income to cash from operating activities: |  |
Depreciation and amortization | 21,536 | 18,312
Stock-based compensation expense | 5,327 | 5,740
Deferred income taxes | 4,813 | 8,825
Equity in undistributed income of unconsolidated joint ventures | (1,976) | (1,321)
Dividends received from unconsolidated joint ventures | 616 | 426
Pension and postretirement benefits | (794) | (1,404)
Loss (gain) from the sale of property, plant and equipment | (942) | 15
Bad debt expense | 61 | 0
Proceeds from insurance related to operations | 826 | 0
Changes in operating assets and liabilities, excluding effects of acquisitions: |  |
Accounts receivable | (13,220) | (8,693)
Inventories | (6,464) | 616
Pension contribution | (147) | (138)
Other current assets | (1,991) | (2,056)
Accounts payable and other accrued expenses | 7,213 | 12,585
Other, net | 1,703 | (1,908)
Net cash provided by operating activities | 64,489 | 51,304
Investing Activities: |  |
Business acquisition | (60,191) | 0
Capital expenditures, net | (9,696) | (9,992)
Proceeds from insurance related to property, plant and equipment | 922 |
Proceeds from the sale of property, plant and equipment, net | 1,641 |
Net cash used in investing activities | (67,324) | (9,992)
Financing Activities: |  |
Debt issuance costs | (1,169) | 0
Repayment of debt principal and long term lease obligation | (50,178) | (1,516)
Repurchases of capital stock |  | (3,997)
Proceeds from the exercise of stock options, net | 1,905 | 2,058
Issuance of shares upon vesting of restricted stock units, net | (2,617) | (1,201)
Proceeds from issuance of shares to employee stock purchase plan | 422 | 427
Net cash used in financing activities | (51,637) | (4,229)
Effect of exchange rate fluctuations on cash | 4,017 | 5,728
Net increase (decrease) in cash and cash equivalents | (50,455) | 42,811
Cash and cash equivalents at beginning of period | 227,767 | 204,586
Cash and cash equivalents at end of period | $ 177,312 | $ 247,397

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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards other than stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References No definition available. + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash inflow associated with the amount received from the stock plan during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations. + References No definition available. + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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