|
Equity (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Mar. 31, 2014
|
|
| Changes in total common stockholders' equity | ||
| Balance at the beginning of the period | $ 626,626 | |
| Share-based compensation expense | 472 | |
| Common stock dividends declared | (8,007) | |
| Net income (loss) | 1,575 | (5,476) |
| Balance at the end of the period | $ 620,666 | |