Commitments And Contingencies (Alba Reimbursement Agreement) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Jan. 09, 2013	Mar. 31, 2012	Jan. 24, 2014
IVRRH Reimbursement Agreement [Member]
Reimbursement Agreement [Line Items]
Reimbursement agreement related to abandonment liabilities	$ 33
Number of common stock shares warrants can be converted into			2,000,000
Warrants exercise price			$ 10.50
Reimbursement agreement, outstanding and accrued fees		3.8
Alba Reimbursement Agreement [Member]
Reimbursement Agreement [Line Items]
Reimbursement agreement related to abandonment liabilities	120
Reimbursement agreement, outstanding and accrued fees				$ 122.0
Reimbursement agreement related to abandonment liabilities, annual fee	13.00%