CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income	$ 12,721	$ 7,084
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,782	12,910
Interest expense related to amortization of debt issue costs and debt discount	567	525
Stock-based compensation	708	619
Deferred income taxes	6,482	0
Tax benefit from exercise of stock appreciation rights and vesting of restricted stock	(64)	0
Net loss (gain) on disposition of property, plant and equipment	(47)	107
Loss on sale of discontinued operations, net of income taxes	8	45
Net loss of unconsolidated joint ventures	13	221
Decrease in trade receivables	43,521	33,737
Increase in inventories	(1,259)	(4,815)
Decrease in accounts payable and accrued liabilities	(34,434)	(40,436)
Other changes in operating assets and liabilities, net	(431)	(1,849)
Net cash provided by (used in) operating activities	41,567	8,148
Cash flows from investing activities:
Business acquisitions	(57,301)	(1,200)
Investments in unconsolidated joint ventures	0	(125)
Purchase of property, plant and equipment	(7,685)	(8,771)
Proceeds from disposition of property, plant and equipment	95	325
Net decrease (increase) in long-term receivables and deposits	(1,301)	940
Net change in other assets	(1,357)	125
Net cash provided by (used in) investing activities	(67,549)	(8,706)
Cash flows from financing activities:
Payments on long-term debt	(1,062)	0
Dividends paid to non-controlling interest in consolidated subsidiary	(355)	(521)
Employee stock purchases	374	315
Tax benefit from exercise of stock appreciation rights and vesting of restricted stock	64	0
Net cash provided by (used in) financing activities	(979)	(206)
Net increase (decrease) in cash and cash equivalents	(26,961)	(764)
Cash and cash equivalents, beginning of period	142,597	152,542
Cash and cash equivalents, end of period	$ 115,636	$ 151,778