Share-based Compensation (Details) In Thousands, unless otherwise specified		6 Months Ended				6 Months Ended	90 Months Ended	6 Months Ended		6 Months Ended		119 Months Ended	6 Months Ended
	Dec. 31, 2012 item	Dec. 31, 2012 Restricted stock	Dec. 31, 2011 Restricted stock	Jun. 30, 2012 Restricted stock	Jun. 30, 2011 Restricted stock	Dec. 31, 2012 2006 LTIP	Dec. 31, 2012 2006 LTIP	Dec. 31, 2012 2006 LTIP Restricted stock	Dec. 31, 2012 2011 LTIP	Dec. 31, 2012 2011 LTIP Restricted stock	Dec. 31, 2012 2003 Plan	Dec. 31, 2012 2003 Plan	Dec. 31, 2012 Old Plan
Stock-based Compensation
Number of share-based employee compensation plans	4
Options outstanding (in shares)	2,905
Options issued (in shares)						1,570					852		483
Shares authorized						2,500	2,500		1,500		1,125	1,125
Options exercised (in shares)							218					61
Nonvested restricted shares outstanding			74	74	155	73	73
Shares already vested under a plan since its inception		111	113					708		3
Shares for future issuances						4	4		1,014		212	212