Fair Value Measurements (Summary of Valuation of Financial Assets and Liabilities) (Detail 1) - USD ($) $ in Thousands	Sep. 30, 2018		Jun. 30, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts-assets	$ 55	[1]	$ 362	[2]
Foreign currency contracts-liabilities	386	[3]	304	[4]
Derivative asset for interest rate swap	2,051	[5]	1,839	[6]
Contingent consideration	703	[7]	683	[8]
Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	3,092		3,218
Investments	955		3,030
Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts-assets	0	[1]	0	[2]
Foreign currency contracts-liabilities	0	[3]	0	[4]
Derivative asset for interest rate swap	0	[5]	0	[6]
Contingent consideration	0	[7]	0	[8]
Quoted Prices in Active Markets (Level 1) | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0		0
Investments	0		0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts-assets	55	[1]	362	[2]
Foreign currency contracts-liabilities	386	[3]	304	[4]
Derivative asset for interest rate swap	2,051	[5]	1,839	[6]
Contingent consideration	0	[7]	0	[8]
Significant Other Observable Inputs (Level 2) | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	3,092		3,218
Investments	955		3,030
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts-assets	0	[1]	0	[2]
Foreign currency contracts-liabilities	0	[3]	0	[4]
Derivative asset for interest rate swap	0	[5]	0	[6]
Contingent consideration	703	[7]	683	[8]
Significant Unobservable Inputs (Level 3) | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0		0
Investments	$ 0		$ 0

[1] Included in "Other receivables" in the accompanying Condensed Consolidated Balance Sheet as of September 30, 2018.

[2] Included in "Other receivables" in the accompanying Consolidated Balance Sheet as of June 30, 2018.

[3] Included in "Accrued expenses" in the accompanying Condensed Consolidated Balance Sheet as of September 30, 2018.

[4] Included in "Accrued expenses" in the accompanying Consolidated Balance Sheet as of June 30, 2018.

[5] Included in "Other Assets" in the accompanying Condensed Consolidated Balance Sheet as of September 30, 2018.

[6] Included in "Other Assets" in the accompanying Consolidated Balance Sheet as of June 30, 2018.

[7] Included in "Long-term liabilities" in the accompanying Condensed Consolidated Balance Sheet as of September 30, 2018.

[8] Included in "Long-term liabilities" in the accompanying Consolidated Balance Sheet as of June 30, 2018.