Fair Value of Financial Instruments (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2021	Mar. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expense recognized due to change in fair value of contingent consideration		$ 516
Modern Communications & Cloud | Significant unobservable inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expense recognized due to change in fair value of contingent consideration	$ 0
Modern Communications & Cloud | Intelisys connectivity and cloud | Significant unobservable inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expense recognized due to change in fair value of contingent consideration		$ 500