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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2012
Cash flows from operating activities: |  |  |
Net income | $ 43,271 | $ 54,005 | $ 54,637
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 42,864 | 37,865 | 28,821
Stock-based compensation expense | 6,812 | 5,562 | 5,472
Increase in deferred taxes | 5,222 | 3,322 | 5,688
Gain on sale of assets | (228) | (347) | (2,418)
Gain on sale of investment | (1,064) | (1,666) | (2,839)
Changes in working capital items | (6,165) | (3,003) | (16,403)
Decrease in other assets | 944 | 1,628 | 4,456
(Decrease) increase in other liabilities | (3,568) | 2,789 | (3,854)
Increase in pension and postretirement benefit obligations | 3,755 | 11,839 | 7,634
Other, net | (1,164) | (3,925) | 1,203
Net cash provided by operating activities | 90,679 | 108,069 | 82,397
Cash flows from investing activities: |  |  |
Capital expenditures | (29,237) | (24,924) | (33,236)
Acquisitions, net of cash acquired | (382,104) | (73,959) | (12,541)
Proceeds from sale of assets | 262 | 252 | 1,461
Purchases of investment securities | 0 | 0 | (958)
Proceeds from dispositions of investments | 0 | 0 | 0
Net cash used in investing activities | (411,079) | (98,631) | (45,274)
Cash flows from financing activities: |  |  |
Proceeds from long-term debt | 415,709 | 116,482 | 53,330
Payments on long-term debt | (58,431) | (83,293) | (53,056)
Payments of contingent consideration | (3,703) | (11,315) | 0
Purchases of treasury stock | (9,905) | (21,622) | (31,017)
Proceeds from the sale of treasury stock | 7,951 | 974 | 267
Dividends | (13,396) | (11,282) | (10,325)
Distributions to noncontrolling interests | (165) | (767) | (170)
Net cash provided by (used in) financing activities | 338,060 | (10,823) | (40,971)
Effect of exchange rate changes on cash | (2,735) | 828 | (484)
Net change in cash and cash equivalents | 14,925 | (557) | (4,332)
Cash and cash equivalents at beginning of year | 48,078 | 48,635 | 52,967
Cash and cash equivalents at end of year | 63,003 | 48,078 | 48,635
Cash paid during the year for: |  |  |
Interest | 12,570 | 13,059 | 11,464
Income taxes | 16,177 | 29,428 | 22,765
Non-cash investing and financing activities: |  |  |
Acquisition of equipment under capital lease | $ 949 | $ 1,276 | $ 1,125

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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=56944662&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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