Fair Value of Financial Instruments (Fair Value, Business Acquisition, Liability for Contingent Consideration) (Details) - Worldwide Communications & Services Segment - Fair Value, Inputs, Level 3 - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	$ 46,334	$ 77,925
Payments	(46,850)	(38,532)
Change in fair value	516	6,941
Fair value at end of period	$ 0	$ 46,334