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Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Cash and cash equivalents at beginning of year | $ 477,239 | $ 477,696
Cash flows from operating activities: |  |
Net income | 64,235 | 89,516
Adjustments to reconcile net income to cash flows from operating activities: |  |
Depreciation and amortization | 27,809 | 25,244
Write-offs associated with restructuring and other | 3,000 | 0
Stock-based compensation | 3,402 | 2,513
Excess tax benefits realized from stock-based compensation arrangements | (586) | (1,901)
Equity in net income of unconsolidated investments (net of tax) | (8,901) | (10,261)
Dividends received from unconsolidated investments and nonmarketable securities | 3,085 | 559
Pension and postretirement expense | 16,669 | 1,582
Pension and postretirement contributions | (2,540) | (1,741)
Unrealized gain on investments in marketable securities | (635) | (1,037)
Deferred income taxes | 4,139 | 6,506
Working capital changes | 39,826 | (12,641)
Other, net | (330) | 311
Net cash provided by operating activities | 149,173 | 98,650
Cash flows from investing activities: |  |
Capital expenditures | (23,667) | (55,335)
Sales of marketable securities, net | 2,151 | 821
Net cash used in investing activities | (21,516) | (54,514)
Cash flows from financing activities: |  |
Repayments of long-term debt | (101) | (3,604)
Other borrowings (repayments), net | (8,434) | 0
Dividends paid to shareholders | (19,582) | (17,808)
Repurchases of common stock | (50,000) | (60,798)
Proceeds from exercise of stock options | 1,255 | 1,720
Excess tax benefits realized from stock-based compensation arrangements | 586 | 1,901
Withholding taxes paid on stock-based compensation award distributions | (2,968) | (5,443)
Debt financing costs | (1,370) | 0
Net cash used in financing activities | (80,614) | (84,032)
Net effect of foreign exchange on cash and cash equivalents | (239) | (2,896)
Increase (decrease) in cash and cash equivalents | 46,804 | (42,792)
Cash and cash equivalents at end of period | $ 524,043 | $ 434,904

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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=31814832&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=31814832&loc=SL4591551-111686 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 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 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=31042434&loc=d3e3602-108585 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of investments, not including unrealized gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, held at each balance sheet date and included in earnings for 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 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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