Consolidated Statements Of Shareholders' Equity - USD ($)
shares in Thousands, $ in Thousands |
Total |
Common Stock |
Additional Paid-in Capital |
Accumulated Other Comprehensive Income (Loss) |
Retained Earnings |
| Shareholders' Equity beginning of period at Dec. 31, 2014 |
$ 4,804,954
|
$ 3,695
|
$ 3,072,996
|
$ (690)
|
$ 1,728,953
|
| Shareholders' Equity, shares beginning of period (shares) at Dec. 31, 2014 |
|
369,459
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Stock option exercises (shares) |
|
564
|
|
|
|
| Stock option exercises |
6,596
|
$ 6
|
6,590
|
|
|
| Stock issuances, net of cancellations (shares) |
|
358
|
|
|
|
| Stock issuances, net of cancellations |
7,423
|
$ 3
|
7,420
|
|
|
| Dividends declared |
(29,449)
|
|
0
|
|
(29,449)
|
| Share repurchases |
(107,955)
|
$ (50)
|
|
|
(107,905)
|
| Share repurchases (shares) |
|
(4,954)
|
|
|
|
| Share-based compensation |
5,662
|
|
5,662
|
|
0
|
| Excess tax benefits (deficiencies) from share-based awards |
(229)
|
|
(229)
|
|
|
| Net income |
54,971
|
|
|
|
54,971
|
| Other comprehensive income |
21
|
|
|
21
|
|
| Shareholders' Equity end of period at Mar. 31, 2015 |
4,741,994
|
$ 3,654
|
3,092,439
|
(669)
|
1,646,570
|
| Shareholders' Equity, shares end of period (shares) at Mar. 31, 2015 |
|
365,427
|
|
|
|
| Shareholders' Equity beginning of period at Dec. 31, 2015 |
4,759,325
|
$ 3,491
|
3,093,802
|
(609)
|
1,662,641
|
| Shareholders' Equity, shares beginning of period (shares) at Dec. 31, 2015 |
|
349,149
|
|
|
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
| Stock option exercises (shares) |
|
4
|
|
|
|
| Stock option exercises |
52
|
$ 0
|
52
|
|
|
| Stock issuances, net of cancellations (shares) |
|
456
|
|
|
|
| Stock issuances, net of cancellations |
8,856
|
$ 4
|
8,852
|
|
|
| Dividends declared |
(31,459)
|
|
0
|
|
(31,459)
|
| Share repurchases |
(52,745)
|
$ (32)
|
|
|
(52,713)
|
| Share repurchases (shares) |
|
(3,226)
|
|
|
|
| Share-based compensation |
6,635
|
|
6,635
|
|
|
| Excess tax benefits (deficiencies) from share-based awards |
(458)
|
|
(458)
|
|
|
| Net income |
83,300
|
|
|
|
83,300
|
| Other comprehensive income |
21
|
|
|
21
|
|
| Shareholders' Equity end of period at Mar. 31, 2016 |
$ 4,773,527
|
$ 3,463
|
$ 3,108,883
|
$ (588)
|
$ 1,661,769
|
| Shareholders' Equity, shares end of period (shares) at Mar. 31, 2016 |
|
346,383
|
|
|
|