Shareholders' Equity and Share-based Compensation - Shares Repurchase (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		113 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020
Class of Stock [Line Items]
Treasury Stock, Shares, Retired			0
Share repurchase program, authorized amount (USD in Millions)	$ 30,000		$ 30,000		$ 30,000
Repurchase of common shares under shares repurchase program			0		6,784,648
Treasury stock acquired, average price per share (in dollars per share)					$ 9.92
Repurchase of common shares under shares repurchase program				$ (1,501)	$ (67,300)
Shares repurchase program, remaining balance	$ 13,400		$ 13,400		$ 13,400
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	0	0	0	0
Share-based payment arrangement, expense	$ 2,876	$ 3,112	$ 7,732	$ 10,659
Treasury Stock Reissued
Class of Stock [Line Items]
Treasury stock acquired, average price per share (in dollars per share)					$ 10.32
Shares reissued (in shares)					145,428
Shares reissued, average price (in dollars per share)					$ 5.30
Market-based Restricted Stock Units (MSU) [Member]
Class of Stock [Line Items]
Share-based payment arrangement, expense	$ 100	$ 100	$ 400	$ 500