v2.4.0.8

Unsecured Senior Notes (Tables) | 6 Months Ended
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Jun. 30, 2013
Unsecured Senior Notes [Abstract] |
Schedule of Unsecured Senior Notes [Table Text Block] | The following summarizes the unsecured senior notes outstanding as of June 30, 2013 (dollars in thousands):
| Coupon/ Stated Rate |  | Effective Rate(1) |  | Principal Amount |  | Maturity Date(2)
12 Year Unsecured Senior Notes | 5.625 | % |  | 5.693 | % |  | $ | 300,000 |  |  | April 15, 2015
12 Year Unsecured Senior Notes | 5.000 | % |  | 5.194 | % |  | 250,000 |  |  | June 1, 2015
10 Year Unsecured Senior Notes | 5.875 | % |  | 5.967 | % |  | 700,000 |  |  | October 15, 2019
10 Year Unsecured Senior Notes | 5.625 | % |  | 5.708 | % |  | 700,000 |  |  | November 15, 2020
10 Year Unsecured Senior Notes | 4.125 | % |  | 4.289 | % |  | 850,000 |  |  | May 15, 2021
7 Year Unsecured Senior Notes | 3.700 | % |  | 3.853 | % |  | 850,000 |  |  | November 15, 2018
11 Year Unsecured Senior Notes | 3.850 | % |  | 3.954 | % |  | 1,000,000 |  |  | February 1, 2023
10.5 Year Unsecured Senior Notes | 3.125 | % |  | 3.279 | % |  | 500,000 |  |  | September 1, 2023
10.5 Year Unsecured Senior Notes | 3.800 | % |  | 3.916 | % |  | 700,000 |  |  | February 1, 2024
Total principal |  |  |  |  | 5,850,000 |  |  |
Net unamortized discount |  |  |  |  | (15,027 | ) |  |
Total |  |  |  |  | $ | 5,834,973 |  |  |
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(1) | Yield on issuance date including the effects of discounts on the notes and the amortization of financing costs.
(2) | No principal amounts are due prior to maturity.

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- Definition Schedule of Senior Notes [Table Text Block] + References No definition available. + Details
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