Net Capital Requirements (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013
Gleacher Securities
Net Capital Requirements
Required minimum net capital	$ 62.5
Excess net capital	62.2
Minimum net capital under the alternative method	0.25
Gleacher Partners, LLC
Net Capital Requirements
Required minimum net capital	0.8
Excess net capital	0.5
Minimum net capital under the alternative method	$ 0.25