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Equity (Tables) | 12 Months Ended
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Dec. 31, 2013
Equity [Abstract] |
Summary of preferred stock |
| As of December 31, 2013 |  | As of December 31, 2012
(In thousands) | Authorized |  | Issued |  | Outstanding |  | Authorized |  | Issued |  | Outstanding
Series A | 1,750 |  |  | — |  |  | — |  |  | 1,750 |  |  | — |  |  | — |
Series X junior participating | 1,000 |  |  | — |  |  | — |  |  | 1,000 |  |  | — |  |  | — |
Undesignated | 5,250 |  |  | — |  |  | — |  |  | 5,250 |  |  | — |  |  | — |
Total preferred stock | 8,000 |  |  | — |  |  | — |  |  | 8,000 |  |  | — |  |  | — |
Summary of common stock |
| As of December 31, 2013 |  | As of December 31, 2012
(In thousands) | Authorized |  | Issued |  | Outstanding |  | Authorized |  | Issued |  | Outstanding
Common stock | 1,000,000 |  |  | 255,973 |  |  | 236,332 |  |  | 1,000,000 |  |  | 254,237 |  |  | 236,582 |

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