Common Stock - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jul. 22, 2020	Apr. 17, 2019	Dec. 06, 2018	Apr. 18, 2018	Jun. 08, 2017	Apr. 26, 2016	Jan. 22, 2015
Common Stock
Approved stock repurchase program, authorized amount				$ 200,000	$ 200,000	$ 100,000	$ 200,000	$ 200,000	$ 400,000	$ 450,000
Repurchase of common stock (in shares)	1,252,289	3,074,127	2,797,623
Repurchase of common stock, amount	$ 150,000	$ 300,000	$ 200,000
Remaining capacity under the stock repurchase program	196,300
Open Market Transaction [Member]
Common Stock
Repurchase of common stock, amount	$ 150,000	$ 300,000