Consolidated Statements of Cash Flows (Unaudited) (Parenthetical)	Jun. 30, 2019	Jun. 30, 2018
3.625% Senior Secured Notes
Interest rate	3.625%	3.625%
4.125% Senior Secured Notes
Interest rate	4.125%	4.125%
4.875% Senior Secured Notes
Interest rate	4.875%	4.875%
5.625% Senior Secured Notes
Interest rate	5.625%	5.625%
5.50% Senior Notes
Interest rate	5.50%	5.50%
6.75% Senior Notes
Interest rate	6.75%	6.75%