Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended	6 Months Ended
	Apr. 30, 2012	Dec. 31, 2011	Jun. 30, 2012	Dec. 06, 2011
Commitments and Contingencies (Textual) [Abstract]
Guarantee liability		$ 1,084	$ 1,084
Commitments and Contingencies (Additional Textual) [Abstract]
Initial payment made to the agreement			3,000
Additional payment made to agreement			2,250
Accrued contingent liability			4,357
Initial payment made to the accrued contingent liability			3,000
Discounted value for future payment			1,978
Estimated insurance receivables			621
Component of interest expense amortized			272
Owned trust preferred securities			4,000
Sales back to leawood			1,000
Judgment in favor of Leawood and against Alesco, amount				1,618
Judgment in favor of Crossfirst and against Alesco X, amount				1,840
Contribution towards Alesco X		2,250
Payment made against settlement to Alesco X	2,250
Potential liability, assuming the restricted stock or restricted units to vest			306
Alesco XIV Guarantee [Member]
Commitments and Contingencies (Textual) [Abstract]
Guarantee liability			1,084
Maximum potential loss on guarantee			$ 8,750