Income Taxes - Narrative (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Income Tax Disclosure
Tax expense recorded in other comprehensive income related to the gain on post retirement benefits		$ 0	$ 9,823,000	$ 0
Tax benefit recorded in contunuing operations related to the gain on post retirement benefits			9,800,000
Deferred tax assets		88,632,000	68,807,000	53,661,000
Net deferred tax assets before valuation allowance		83,721,000
Valuation allowance		84,954,000	60,390,000	43,860,000
Change in valuation allowance		24,600,000	16,500,000	10,600,000
Unrecognized tax benefits that would impact effective tax rate		3,100,000	3,600,000
Unrecognized tax benefits that would impact effective tax rate, next twelve months		41,000
Settlements		(691,000)	0	0
Benefit for change in unrecognized tax benefits	(700,000)
Income tax penalties and interest accrued on unrecognized tax benefits		10,000	47,000
Income tax penalties and interest expense on unrecognized tax benefits		(37,000)	12,000	(10,000)
California
Income Tax Disclosure
Settlements	700,000
Expiring June 30 2025
Income Tax Disclosure
Operating loss carryforwards		121,700,000
Expiring June 30 2020
Income Tax Disclosure
Operating loss carryforwards		132,900,000
Expiring June 30 2012
Income Tax Disclosure
Federal capital loss carryforward		7,600,000
State capital loss carryforward		$ 6,500,000