(in thousands, except rates)

Coupon Rate

Maturity Date

March 31, 2021

Senior secured notes principal amount⁽¹⁾

7.50

%

2/15/2022

$

180,000

Unamortized premium - Senior secured notes

695

Unamortized deferred financing costs - Senior secured notes

(951)

Total Senior secured notes, net

$

179,744

Convertible notes principal amount ⁽²⁾

7.00

%

8/15/2023

115,000

Unamortized discount - Convertible notes⁽³⁾

(958)

Unamortized deferred financing costs - Convertible notes

(1,637)

Total Convertible notes, net

$

112,405

Corporate debt principal amount⁽⁴⁾

6.20

%

7/30/2026

104,250

Corporate debt principal amount⁽⁵⁾

5.75

%

2/15/2026

201,250

Unamortized discount - corporate debt

(4,966)

Unamortized deferred financing costs - corporate debt

(3,467)

Junior subordinated notes principal amount⁽⁶⁾

3M + 3.10

%

3/30/2035

15,000

Junior subordinated notes principal amount⁽⁷⁾

3M + 3.10

%

4/30/2035

21,250

Total corporate debt, net

$

333,317

Total carrying amount of debt components

$

625,466

Total carrying amount of conversion option of equity components recorded in equity

$

958

(1) Interest on the senior secured notes is payable semiannually on each February 15 and August 15, beginning on August 15, 2017.

(2) Interest on the convertible notes is payable quarterly on February 15, May 15, August 15, and November 15 of each year, beginning on November 15, 2017.

(3) Represents the discount created by separating the conversion option from the debt host instrument.

(4) Interest on the corporate debt is payable January 30, April 30, July 30, and October 30 of each year, beginning on October 30, 2019.

(5) Interest on the corporate debt is payable January 30, April 30, July 30, and October 30 of each year, beginning on April 30, 2021.

(6) Interest on the Junior subordinated notes I-A payable March 30, June 30, September 30, and December 30 of each year.

(7) Interest on the Junior subordinated notes I-B payable January 30, April 30, July 30, and October 30 of each year.