Consolidated Statement Of Cash Flows (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Consolidated Statement Of Cash Flows [Abstract]
Placement fee	$ 1,852	$ 0	$ 1,852	$ 0