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Debt (Detail Textuals) - USD ($) $ in Thousands	12 Months Ended
Debt (Detail Textuals) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jul. 31, 2017
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ 0	$ 0	$ 2,598
Outstanding borrowings under Revolving credit facility	96,000	$ 70,000
Interest Rate Swap
Debt Instrument [Line Items]
Derivative, notional amount	$ 150,000		$ 150,000
Percentage of interest rate				1.8325%
Credit Facilities \| Minimum
Debt Instrument [Line Items]
Credit agreement required covenant-earnings to borrowing ratio	3.00:1.00
Credit Facilities \| Maximum
Debt Instrument [Line Items]
Credit agreement required covenant-earnings to borrowing ratio	4.00:1.00
Credit Facilities \| Israel subsidiaries
Debt Instrument [Line Items]
Maturity dates	mature in October 2019 and March 2020
Aggregate available credit facilities	$ 14,000
Credit Facilities \| LIBOR
Debt Instrument [Line Items]
Basis for effective rate			a Eurodollar rate determined by reference to LIBOR with a term as selected by the Company
Credit Facilities \| LIBOR \| Israel subsidiaries
Debt Instrument [Line Items]
Percentage of basis spread on variable rate	2.25%
Credit Facilities \| Prime Rate \| Israel subsidiaries
Debt Instrument [Line Items]
Percentage of basis spread on variable rate	0.50%
Credit Agreement \| Term A Loan
Debt Instrument [Line Items]
Aggregate principal amount			$ 250,000
Weighted-average interest rates	3.52%	3.33%
Percentage of interest rate	3.50%
Credit Agreement \| Revolving credit facility (the "Revolver")
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 250,000
Current borrowings under the Revolver	$ 96,000
Outstanding borrowings under Revolving credit facility	3,009
Aggregate available credit facilities	$ 150,991
Weighted-average interest rates	3.86%	3.20%
Percentage of interest rate	3.90%
Credit Agreement \| Credit Facilities
Debt Instrument [Line Items]
Maturity dates			June 29, 2022
Covenant requirement, permitted leverage ratio			a maximum First Lien Net Leverage Ratio of 4.00:1.00 and, (ii) a minimum interest coverage ratio of 3.00:1.00, each calculated on a trailing four-quarter basis
Credit Agreement \| Credit Facilities \| Federal Funds Effective Rate
Debt Instrument [Line Items]
Percentage of basis spread on variable rate			0.50%
Credit Agreement \| Credit Facilities \| Base Rate
Debt Instrument [Line Items]
Basis for effective rate			a base rate determined by reference to the highest of (a) the rate as publicly announced from time to time by Bank of America as its "prime rate," (b) the federal funds effective rate plus 0.50% and (c) the LIBOR daily floating rate plus 1.00%.
Covenant requirement, permitted leverage ratio			equal to or greater than 3.00:1.00; (ii) less than 3.00:1.00 but greater than or equal to 2.25:1.00; or, (iii) less than 2.25:1.00, the Credit Facilities
Interest rate, description			1.00%; 0.75%; and, 0.50%
Credit Agreement \| Credit Facilities \| LIBOR
Debt Instrument [Line Items]
Covenant requirement, permitted leverage ratio			equal to or greater than 3.00:1.00; (ii) less than 3.00:1.00 but greater than or equal to 2.25:1.00; or, (iii) less than 2.25:1.00, the Credit Facilities
Interest rate, description			2.00%; 1.75%; and, 1.50%
Percentage of basis spread on variable rate			1.00%