Net Capital Requirements - Additional Information (Details) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2013
|
Dec. 31, 2012
|
Sep. 30, 2013
Maximum
|
Sep. 30, 2013
Securities America
|
Sep. 30, 2013
Ladenburg
|
Sep. 30, 2013
Triad
|
Sep. 30, 2012
Triad
|
Sep. 30, 2013
Investacorp Inc
|
Sep. 30, 2013
Premier
|
Sep. 30, 2013
Premier
Minimum
Cash
|
Sep. 30, 2013
Premier
Minimum
Regulatory requirements
|
Sep. 30, 2013
Premier
Minimum
Regulatory requirements
Cash
|
---|---|---|---|---|---|---|---|---|---|---|---|---|
Net Capital Requirements [Line Items] | ||||||||||||
Regulatory net capital | $ 10,055 | $ 15,222 | $ 4,843 | $ 4,694 | ||||||||
Alternative excess amount over net capital requirement | 9,805 | 14,972 | ||||||||||
Alternative minimum net capital requirement | 250 | 250 | ||||||||||
Indebtedness to net capital | 15 | 3.2 | 1.2 | |||||||||
Excess amount over net capital | 3,818 | 4,323 | ||||||||||
Minimum net capital requirement | 1,025 | 371 | ||||||||||
Stockholder's equity | $ 183,741 | $ 51,221 | $ 1,301 | $ 250 | $ 1,000 | $ 250 |