Stockholders' Equity (Narratives) (Details) - USD ($)				1 Months Ended		12 Months Ended
	Jan. 24, 2020	Nov. 07, 2019	Nov. 08, 2018	Feb. 29, 2020	Nov. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Nov. 02, 2018
Class Of Stock [Line Items]
Preferred stock shares outstanding						0
Stock repurchase, authorized amount				$ 100,000,000.0				$ 60,000,000.0
Maximum amount of common stock may be repurchased in calendar year							$ 35,000,000.0
Payment for intial delivery of shares						$ 30,000,000	$ 15,000,000
Total number of shares repurchased						4,232,000	2,366,000
Average cash purchase price paid						$ 7.09	$ 6.34
Stock repurchase, increase in authorized amount				40,000,000.0
Stock repurchase decrease in authorized amount				$ 30,000,000.0
Stock repurchase, extended period				3 years
Stock repurchase, extended period, effective date				Feb. 05, 2020
Accelerated Share Repurchase Agreement "November 2019"
Class Of Stock [Line Items]
Payment for intial delivery of shares					$ 30,000,000.0
Initial delivery of shares repurchased					3,900,000
Value of initial share delivery repurchased					$ 25,200,000
Equity forward contract					$ 4,800,000
Forward contract settlement date					Jan. 24, 2020
Total number of shares repurchased					4,200,000
Average cash purchase price paid					$ 7.09
Additional shares of common stock received	400,000
2013 Equity Incentive Plan
Class Of Stock [Line Items]
Increase in authorized shares for issuance		7,000,000.0				7,000,000.0
2014 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Increase in authorized shares for issuance			7,500,000