Fair Value of Financial Instruments (Fair Value, Business Acquisition, Liability for Contingent Consideration) (Details) - Worldwide Communications and Services Segment [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	$ 77,925	$ 108,233
Payments	(38,532)	(45,796)
Change in fair value	(6,941)	15,200
Fluctuation due to foreign currency exchange		288
Fair value at end of period	$ 46,334	$ 77,925