Debt (Tables)

3 Months Ended

Sep. 30, 2017

Debt Disclosure [Abstract]

Schedule of long-term debt

	September 30, 2017		June 30, 2017
Convertible Senior Notes, net	$	123,189	$	121,676
Revolving Bank Loans		70,000		90,000
Term Bank Loans		135,660		139,227
Mortgage		2,730		2,763
		331,579		353,666
Less current portion		14,482		14,466
	$	317,097	$	339,200

Schedule of carrying value of convertible senior notes

	September 30, 2017			June 30, 2017
Principal amount	$	143,750		$	143,750
Unamortized debt discount		(17,951	)		(19,255	)
Unamortized debt issuance costs		(2,610	)		(2,819	)
Net carrying value	$	123,189		$	121,676

Schedule of components of total interest expense related to notes

	2017		2016
Contractual coupon	$	709	$	725
Amortization of debt discount		1,304		1,223
Amortization of debt issuance costs		209		209
	$	2,222	$	2,157