(in millions)

September 30,
2011

December 31,
2010

Senior debentures (unsecured) maturing March 1, 2020

$

200.0

$

200.0

Senior debentures (unsecured) maturing June 15, 2021

300.0

—

Senior debentures (unsecured) maturing October 15, 2025

121.6

121.6

Junior debentures

59.7

129.2

Subordinated note maturing November 16, 2034

16.1

—

Subordinated note maturing September 21, 2036

50.0

—

FHLBB borrowings

152.8

134.5

Capital securities

7.0

18.0

Surplus notes

—

4.0

Total principal debt

$

907.2

$

607.3

Unamortized fair value adjustment

(2.5

)

(0.5

)

Unamortized debt issuance cost

(3.1

)

(0.9

)

Total

$

901.6

$

605.9