Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
Jul. 31, 2020	Jul. 31, 2019
Cash flows from operating activities:
Net income	$ 27,219	$ 24,820
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	27,097	29,275
Amortization of debt discount and debt issuance costs	753	835
Provision for expected credit losses	138	657
Provision for obsolescence of inventory	109	119
Effects of fair value adjustments to inventory		151
Increase in fair value of contingent consideration		228
Equity-based compensation	2,619	2,071
Loss (gain) on disposal and impairment of assets	394	(156)
Deferred income taxes	(5,241)	(1,440)
Changes in assets and liabilities net of effects of acquisitions:
Trade accounts and notes receivable	(23,013)	(23,230)
Inventories	14,008	18
Prepaid expenses and other assets	(3,782)	(1,359)
Accounts payable	(33,887)	(9,526)
Accrued compensation and employee benefits	(36,062)	(26,347)
Other accrued expenses and liabilities	13,937	(8,556)
Cash used in operating activities	(15,711)	(12,440)
Cash flows from investing activities:
Purchases of property and equipment	(4,745)	(5,891)
Proceeds from sale of assets	342	232
Acquisition of businesses, net of cash acquired	(210)	(10,633)
Cash used in investing activities	(4,613)	(16,292)
Cash flows from financing activities:
Repayments on revolving credit facilities	(58,083)	(262,107)
Borrowings from revolving credit facilities	14,421	274,810
Payments of principal on long-term debt	(2,492)	(2,492)
Payments of principal on finance lease obligations	(7,521)	(6,021)
Proceeds from exercises of stock options	691	133
Payments for taxes related to net share settlement of equity awards	(105)
Other financing activities	1,270	1,022
Cash (used in) provided by financing activities	(51,819)	5,345
Effect of exchange rates on cash and cash equivalents	943	172
Decrease in cash and cash equivalents	(71,200)	(23,215)
Cash and cash equivalents, beginning of period	210,909	47,338
Cash and cash equivalents, end of period	139,709	24,123
Supplemental cash flow disclosures:
Cash paid for income taxes	3,478	18,776
Cash paid for interest	$ 13,115	$ 17,011

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