Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 63,619	$ 65,419	$ 81,789
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	17,154	11,997	7,375
Amortization of debt issue costs	297	297	312
Provision for doubtful accounts	7,571	993	6,573
Share-based compensation	7,093	6,522	5,248
Deferred income taxes	1,846	3,921	8,606
Excess tax benefits from share-based payment arrangements	(101)	(260)	(982)
Change in fair value of contingent consideration	1,294	2,667	2,311
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	14,167	(14,476)	(31,860)
Inventories	2,999	(37,695)	(99,214)
Prepaid expenses and other assets	4,612	2,337	6,206
Other noncurrent assets	(2,186)	1,431	1,285
Accounts payable	(71,706)	28,280	57,532
Accrued expenses and other liabilities	6,401	7,449	(5,357)
Income taxes payable	(849)	(3,360)	7,898
Net cash provided by (used in) operating activities	52,211	75,522	47,722
Cash flows from investing activities:
Capital expenditures	(12,081)	(20,762)	(11,228)
Cash paid for business acquisitions, net of cash acquired	(61,475)	(59,779)	0
Net cash provided by (used in) investing activities	(73,556)	(80,541)	(11,228)
Cash flows from financing activities:
Borrowings (repayments) short-term borrowings, net	0	(24,097)	0
Borrowings on revolving credit, net of expenses	1,376,620	93,579	0
Repayments on revolving credit, net of expenses	(1,305,193)	(93,579)	0
Repayments on long-term debt	(2,792)	(9,146)	0
Repayments of capital lease obligations	(223)	(262)	0
Debt issuance costs	0	0	(468)
Contingent consideration payments	(8,606)	(5,640)	(3,810)
Exercise of stock options	3,994	760	12,581
Repurchase of common stock	(100,206)	(18,768)	0
Excess tax benefits from share-based payment arrangements	101	260	982
Net cash provided by (used in) financing activities	(36,305)	(56,893)	9,285
Effect of exchange rate changes on cash and cash equivalents	(2,596)	(11,293)	908
Increase (decrease) in cash and cash equivalents	(60,246)	(73,205)	46,687
Cash and cash equivalents at beginning of period	121,646	194,851	148,164
Cash and cash equivalents at end of period	61,400	121,646	194,851
Supplemental disclosure of cash flow information:
Interest paid during the year	1,706	1,075	739
Income taxes paid during the year	$ 33,859	$ 36,272	$ 24,323