Debt (Tables)

12 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Schedule of long-term debt

	June 30,
	2018		2017
Convertible Senior Notes, net	$	127,857	$	121,676
Revolving bank loans		62,000		90,000
Term bank loans		124,959		139,227
Mortgage		2,582		2,763
		317,398		353,666
Less current portion		14,482		14,466
	$	302,916	$	339,200

Schedule of carrying value of the notes

	June 30, 2018			June 30, 2017
Principal amount	$	143,750		$	143,750
Unamortized debt discount		(13,909	)		(19,255	)
Unamortized debt issuance costs		(1,984	)		(2,819	)
Net carrying value	$	127,857		$	121,676

Schedule of components of total interest expense related to the notes

	2018		2017
Contractual coupon	$	2,875	$	2,867
Amortization of debt discount		5,346		5,012
Amortization of debt issuance costs		835		835
	$	9,056	$	8,714

Schedule of maturities of long-term debt

2019		14,482
2020		14,465
2021		142,322
2022		144,352
2023		197
Thereafter		1,580
	$	317,398