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Stockholders' Equity - Stock Options Granted (Details) | 98 Months Ended
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Jun. 30, 2019 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Granted (in shares) | 13,021,758
Options Outstanding (in shares) | 7,637,201
Options Exercisable (in shares) | 2,625,361
January 2, 2019 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Granted (in shares) | 1,316,924
Option Exercise (Strike) Price (in dollars per share) | $ / shares | $ 26.00
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares | $ 25.705
Options Outstanding (in shares) | 1,303,670
Options Exercisable (in shares) | 29,010
January 2, 2018 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Granted (in shares) | 1,087,936
Option Exercise (Strike) Price (in dollars per share) | $ / shares | $ 27.50
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares | $ 27.270
Options Outstanding (in shares) | 1,033,248
Options Exercisable (in shares) | 42,370
January 3, 2017 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Granted (in shares) | 1,529,578
Option Exercise (Strike) Price (in dollars per share) | $ / shares | $ 23.50
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares | $ 23.475
Options Outstanding (in shares) | 1,247,616
Options Exercisable (in shares) | 371,622
April 19, 2016 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Granted (in shares) | 1,690,880
Option Exercise (Strike) Price (in dollars per share) | $ / shares | $ 23.00
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares | $ 22.870
Options Outstanding (in shares) | 1,286,260
Options Exercisable (in shares) | 327,170
April 21, 2015 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Granted (in shares) | 1,786,440
Option Exercise (Strike) Price (in dollars per share) | $ / shares | $ 21.00
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares | $ 20.630
Options Outstanding (in shares) | 975,939
Options Exercisable (in shares) | 463,383
April 22, 2014 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Granted (in shares) | 1,910,000
Option Exercise (Strike) Price (in dollars per share) | $ / shares | $ 28.00
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares | $ 25.265
Options Outstanding (in shares) | 743,716
Options Exercisable (in shares) | 494,356
April 16, 2013 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Granted (in shares) | 410,000
Option Exercise (Strike) Price (in dollars per share) | $ / shares | $ 27.00
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares | $ 24.625
Options Outstanding (in shares) | 118,094
Options Exercisable (in shares) | 76,844
April 17, 2012 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Granted (in shares) | 2,470,000
Option Exercise (Strike) Price (in dollars per share) | $ / shares | $ 27.00
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares | $ 24.505
Options Outstanding (in shares) | 872,358
Options Exercisable (in shares) | 764,306
April 19, 2011 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options Granted (in shares) | 820,000
Option Exercise (Strike) Price (in dollars per share) | $ / shares | $ 17.50
Closing Stock Price on Date of Grant (in dollars per share) | $ / shares | $ 15.890
Options Outstanding (in shares) | 56,300
Options Exercisable (in shares) | 56,300

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