|
Earnings Per Share Level 4 (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2013
|
Sep. 30, 2012
|
Sep. 30, 2013
|
Sep. 30, 2012
|
|
| Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] | ||||
| Net income attributable to common stockholders | $ 26,779 | $ 41,062 | $ 118,015 | $ 126,163 |
| After tax interest on convertible debt | 13 | 13 | 38 | 38 |
| Net income — diluted | $ 26,792 | $ 41,075 | $ 118,053 | $ 126,201 |
| Weighted average shares — basic | (211,954) | (214,914) | (211,721) | (216,974) |
| Stock options | 4,295 | 3,425 | 4,035 | 3,211 |
| Convertible debt | 121 | 121 | 121 | 121 |
| Weighted average shares — diluted | 216,370 | 218,460 | 215,877 | 220,306 |
| Net income attributable to common stockholders, basic | $ 0.13 | $ 0.19 | $ 0.56 | $ 0.58 |
| Net income attributable to common stockholders, diluted | $ 0.12 | $ 0.19 | $ 0.55 | $ 0.57 |