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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015
Cash flows provided by (used in) operating activities: |  |  |  |
Net income |  | $ 26,900 | $ 44,934 | $ 37,556
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |  |  |
(Increase) decrease in fair value of derivative instruments | [1] | (2,193) | (18,217) | 4,187
Depreciation and amortization |  | 29,163 | 27,777 | 26,748
Multiemployer pension plan withdrawal charge |  |  |  | 17,796
Loss on redemption of debt |  |  |  | 7,345
Provision (recovery) for losses on accounts receivable |  | 1,639 | (639) | 3,738
Change in deferred taxes |  | 10,134 | 9,670 | (4,101)
Changes in operating assets and liabilities net of amounts related to acquisitions: |  |  |  |
(Increase) decrease in receivables |  | (19,844) | 10,965 | 30,141
(Increase) decrease in inventories |  | (10,598) | 9,979 | 4,326
(Increase) decrease in other assets |  | (140) | (2,354) | 113
Increase (decrease) in accounts payable |  | 2,169 | (705) | 3,189
(Decrease) increase in customer credit balances |  | (23,085) | 6,490 | 3,992
Increase in other current and long-term liabilities |  | 6,913 | 14,057 | 1,823
Net cash provided by operating activities |  | 21,058 | 101,957 | 136,853
Cash flows provided by (used in) investing activities: |  |  |  |
Capital expenditures |  | (12,164) | (10,134) | (9,555)
Proceeds from sales of fixed assets |  | 734 | 318 | 300
Purchase of investments | [2] | (11,647) |  |
Acquisitions |  | (43,304) | (9,815) | (21,130)
Net cash used in investing activities |  | (66,381) | (19,631) | (30,385)
Cash flows provided by (used in) financing activities: |  |  |  |
Revolving credit facility borrowings |  |  |  | 12,296
Revolving credit facility repayments |  |  |  | (12,296)
Redemption of senior notes |  |  |  | (125,000)
Debt redemption cost |  |  |  | (5,548)
Proceeds from term loan |  |  |  | 100,000
Loan repayments |  | (16,200) | (7,500) |
Distributions |  | (24,322) | (23,092) | (21,298)
Unit repurchases |  |  | (12,017) | (691)
Customer retainage payments |  | (575) | (740) |
Payments of debt issuance costs |  | (60) | (297) | (2,422)
Net cash used in financing activities |  | (41,157) | (43,646) | (54,959)
Net (decrease) increase in cash, cash equivalents and restricted cash |  | (86,480) | 38,680 | 51,509
Cash, cash equivalents and restricted cash at beginning of period |  | 139,188 | 100,508 | 48,999
Cash, cash equivalents and restricted cash at end of period |  | $ 52,708 | $ 139,188 | $ 100,508
[1] | Represents the change in value of unrealized open positions and expired options.
[2] | See Note 2 - Investments and Note 19 - Subsequent Events

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