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) |
|
620
|
|
|
|
| Stock option exercises |
7,222
|
$ 6
|
7,216
|
|
|
| Stock issuances, net of cancellations (shares) |
|
442
|
|
|
|
| Stock issuances, net of cancellations |
7,423
|
$ 4
|
7,419
|
|
|
| Dividends declared |
(58,227)
|
|
8
|
|
(58,235)
|
| Share repurchases |
(322,066)
|
$ (157)
|
|
|
(321,909)
|
| Share repurchases (shares) |
|
(15,702)
|
|
|
|
| Share-based compensation |
10,233
|
|
10,233
|
|
0
|
| Excess tax benefits (deficiencies) from share-based awards |
(1,617)
|
|
(1,617)
|
|
|
| Net income |
158,295
|
|
|
|
158,295
|
| Other comprehensive income |
42
|
|
|
42
|
|
| Shareholders' Equity end of period at Jun. 30, 2015 |
4,606,259
|
$ 3,548
|
3,096,255
|
(648)
|
1,507,104
|
| Shareholders' Equity, shares end of period (shares) at Jun. 30, 2015 |
|
354,819
|
|
|
|
| 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) |
|
67
|
|
|
|
| Stock option exercises |
742
|
$ 0
|
742
|
|
|
| Stock issuances, net of cancellations (shares) |
|
499
|
|
|
|
| Stock issuances, net of cancellations |
8,856
|
$ 5
|
8,851
|
|
|
| Dividends declared |
(62,747)
|
|
0
|
|
(62,747)
|
| Share repurchases |
(100,806)
|
$ (58)
|
|
|
(100,748)
|
| Share repurchases (shares) |
|
(5,819)
|
|
|
|
| Share-based compensation |
12,209
|
|
12,209
|
|
|
| Excess tax benefits (deficiencies) from share-based awards |
(563)
|
|
(563)
|
|
|
| Net income |
201,060
|
|
|
|
201,060
|
| Other comprehensive income |
41
|
|
|
41
|
|
| Shareholders' Equity end of period at Jun. 30, 2016 |
$ 4,818,117
|
$ 3,438
|
$ 3,115,041
|
$ (568)
|
$ 1,700,206
|
| Shareholders' Equity, shares end of period (shares) at Jun. 30, 2016 |
|
343,896
|
|
|
|