Net Capital Requirements (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012
Gleacher Securities
Net Capital Requirements
Minimum net capital under the alternative method	$ 56.2
Excess net capital	55.9
Required minimum net capital	0.25
Gleacher Partners, LLC
Net Capital Requirements
Minimum net capital under the alternative method	0.8
Excess net capital	0.5
Required minimum net capital	0.25
ClearPoint
Net Capital Requirements
Net worth	10.3
Excess net worth	9.3
Required minimum net worth	$ 1.0