Consolidated Statement of Changes in Shareholder's Equity Consolidated Statement of Changes in Shareholders' Equity (Parenthetical) - shares	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance - Common Stock Outstanding (shares)			133,423,628
Ending Balance - Common Stock Outstanding (shares)	145,221,009		145,221,009
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance - Common Stock Outstanding (shares)	145,622,900	133,318,000.0	133,423,600	125,049,900
Equity offering, sale of common stock			11,431,400	7,354,200
Share issuances related to stock-based compensation	83,900	51,300	851,800	965,200
Ending Balance - Common Stock Outstanding (shares)	145,706,800	133,369,300	145,706,800	133,369,300