|
Junior Subordinated Debt Owed to Unconsolidated Trusts (Details) (USD $)
|
12 Months Ended |
|
Dec. 31, 2014
|
| Junior subordinated debt owed to unconsolidated trusts |
|
| Maximum assets of bank holding companies for inclusion of proceeds of trust preferred securities from Tier 1 capital unless such securities were issued prior to May 19, 2010 |
$ 15,000,000,000 |
| Trust Preferred Securities |
|
| Junior subordinated debt owed to unconsolidated trusts |
|
| Percentage limit on inclusion of qualifying trust preferred securities in Tier I Capital |
25.00% |
| Transition period for inclusion of qualifying trust preferred securities in Tier I Capital |
5 years |
| Trust preferred securities qualified as Tier I capital (as a percent) |
100.00% |
| Maximum assets of bank holding companies for inclusion of proceeds of trust preferred securities from Tier 1 capital unless such securities were issued prior to May 19, 2010 |
15,000,000,000 |
| First Busey Statutory Trust II | Trust Preferred Securities |
|
| Junior subordinated debt owed to unconsolidated trusts |
|
| Face value |
15,000,000 |
| Base rate |
3-mo LIBOR |
| Annual distribution rate margin (as a percent) |
2.65% |
| First Busey Statutory Trust III | Trust Preferred Securities |
|
| Junior subordinated debt owed to unconsolidated trusts |
|
| Face value |
10,000,000 |
| Base rate |
3-mo LIBOR |
| Annual distribution rate margin (as a percent) |
1.75% |
| First Busey Statutory Trust IV | Trust Preferred Securities |
|
| Junior subordinated debt owed to unconsolidated trusts |
|
| Face value |
30,000,000 |
| Base rate |
3-mo LIBOR |
| Annual distribution rate margin (as a percent) |
1.55% |
| Term of trust preferred securities |
5 years |
| Fixed coupon rate (as a percent) |
6.94% |
| Junior Subordinated Notes | Trust Preferred Securities |
|
| Junior subordinated debt owed to unconsolidated trusts |
|
| Maximum period to defer payment of interest on the notes and, therefore, distributions on the trust preferred securities |
5 years |
| Junior Subordinated Notes | First Busey Statutory Trust II |
|
| Junior subordinated debt owed to unconsolidated trusts |
|
| Principal balance |
15,000,000 |
| Base rate |
3-mo LIBOR |
| Interest rate margin (as a percent) |
2.65% |
| Junior Subordinated Notes | First Busey Statutory Trust III |
|
| Junior subordinated debt owed to unconsolidated trusts |
|
| Principal balance |
10,000,000 |
| Base rate |
3-mo LIBOR |
| Interest rate margin (as a percent) |
1.75% |
| Junior Subordinated Notes | First Busey Statutory Trust IV |
|
| Junior subordinated debt owed to unconsolidated trusts |
|
| Principal balance |
$ 30,000,000 |
| Base rate |
3-mo LIBOR |
| Interest rate margin (as a percent) |
1.55% |
| Term of debt |
5 years |
| Fixed coupon rate (as a percent) |
6.94% |