Stockholders' Deficit - Stock Repurchase Program (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Apr. 17, 2019	Dec. 06, 2018	Apr. 18, 2018	Jun. 08, 2017	Apr. 26, 2016	Jan. 22, 2015
Class of Stock [Line Items]
Approved stock repurchase program, authorized amount (up to)			$ 200,000	$ 100,000	$ 200,000	$ 200,000	$ 400,000	$ 450,000
Repurchase of common stock, amount	$ 50,000	$ (50,000)
Remaining capacity under the stock repurchase program	$ 296,300
Open Market Transaction
Class of Stock [Line Items]
Repurchase of common stock (in shares)	382,279
Repurchase of common stock, amount	$ 50,000