XML 52 R55.htm IDEA: XBRL DOCUMENT v3.19.3
Revision to Noncontrolling Interest (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Jun. 30, 2018
Jun. 30, 2017
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]                                      
Net loss attributable to noncontrolling interest $ (1,399)   $ (1,411)   $ (1,642) $ (1,190) $ (1,501)             $ (4,175) $ (4,333)        
Net income applicable to InterDigital, Inc. $ 2,234 $ 7,743 (2,803)   $ 21,752 10,966 30,230             $ 7,174 $ 62,948        
Net income per common share, Basic (in usd per share) $ 0.07       $ 0.63                 $ 0.23 $ 1.81        
Net income per common share, Diluted (in usd per share) $ 0.07       $ 0.61                 $ 0.22 $ 1.77        
Total comprehensive income attributable to InterDigital, Inc. $ 2,479       $ 22,219                 $ 9,540 $ 62,044        
Retained earnings 1,409,870     $ 1,435,970                   1,409,870     $ 1,435,970    
Total InterDigital, Inc. shareholders’ equity 782,106     936,729                   782,106     936,729    
Noncontrolling interest 21,193     1,284                   21,193     1,284    
Total equity $ 803,299 $ 800,240 $ 825,513 938,013 1,015,049 1,036,224 1,035,732 $ 873,148       $ 1,036,224   $ 803,299 1,015,049   938,013 $ 873,148  
As Reported                                      
Error Corrections and Prior Period Adjustments Restatement [Line Items]                                      
Net loss attributable to noncontrolling interest       970 1,297 930 1,196 835 $ 811 $ 955 $ 978 2,126 $ 1,933   3,423 $ 2,744 4,393 3,579 $ 3,521
Net income applicable to InterDigital, Inc.       $ 1,830 $ 21,407 $ 10,706 $ 29,925 $ 52,502 $ 35,536 $ 52,499 $ 33,756 $ 40,631 $ 86,255   $ 62,038 $ 121,791 $ 63,868 $ 174,293 $ 309,001
Net income per common share, Basic (in usd per share)       $ 0.05 $ 0.62 $ 0.31 $ 0.86 $ 1.52 $ 1.02 $ 1.51 $ 0.98 $ 1.17 $ 2.50   $ 1.79 $ 3.52 $ 1.85 $ 5.04 $ 8.95
Net income per common share, Diluted (in usd per share)       $ 0.05 $ 0.60 $ 0.30 $ 0.84 $ 1.48 $ 1.00 $ 1.46 $ 0.93 $ 1.14 $ 2.39   $ 1.74 $ 3.40 $ 1.81 $ 4.87 $ 8.78
Total comprehensive income attributable to InterDigital, Inc.       $ 2,795 $ 21,874 $ 11,082 $ 28,178 $ 51,114 $ 35,442 $ 52,457 $ 33,711 $ 39,260 $ 86,168   $ 61,134 $ 121,610 $ 63,929 $ 172,724 $ 308,665
Retained earnings       1,426,266 1,436,171 1,426,888 1,428,437 1,249,091       1,426,888     1,436,171   1,426,266 1,249,091 1,120,766
Total InterDigital, Inc. shareholders’ equity       927,025 1,000,591 1,020,469 1,019,047 855,267       1,020,469     1,000,591   927,025 855,267 739,709
Noncontrolling interest       10,988 14,458 15,755 16,685 17,881       15,755     14,458   10,988 17,881 14,659
Total equity       938,013 1,015,049 1,036,224 1,035,732 873,148       1,036,224     1,015,049   938,013 873,148 754,368
As Revised                                      
Error Corrections and Prior Period Adjustments Restatement [Line Items]                                      
Net loss attributable to noncontrolling interest       1,223 1,642 1,190 1,501 1,370 1,226 1,427 1,483 2,691 2,910   4,333 4,136 5,556 5,506 5,261
Net income applicable to InterDigital, Inc.       $ 2,083 $ 21,752 $ 10,966 $ 30,230 $ 53,037 $ 35,951 $ 52,971 $ 34,261 $ 41,196 $ 87,232   $ 62,948 $ 123,183 $ 65,031 $ 176,220 $ 310,741
Net income per common share, Basic (in usd per share)       $ 0.06 $ 0.63 $ 0.32 $ 0.87 $ 1.53 $ 1.04 $ 1.53 $ 1.00 $ 1.19 $ 2.53   $ 1.81 $ 3.56 $ 1.89 $ 5.09 $ 9.00
Net income per common share, Diluted (in usd per share)       $ 0.06 $ 0.61 $ 0.31 $ 0.85 $ 1.49 $ 1.02 $ 1.48 $ 0.95 $ 1.16 $ 2.42   $ 1.77 $ 3.43 $ 1.84 $ 4.93 $ 8.83
Total comprehensive income attributable to InterDigital, Inc.       $ 3,048 $ 22,219 $ 11,342 $ 28,483 $ 51,649 $ 35,857 $ 52,929 $ 34,216 $ 39,825 $ 87,145   $ 62,044 $ 123,002 $ 65,092 $ 174,651 $ 310,405
Retained earnings       1,435,970 1,445,622 1,435,994 1,437,283 1,257,632       1,435,994     1,445,622   1,435,970 1,257,632 1,127,380
Total InterDigital, Inc. shareholders’ equity       936,729 1,010,042 1,029,575 1,027,893 863,808       1,029,575     1,010,042   936,729 863,808 746,323
Noncontrolling interest       1,284 5,007 6,649 7,839 9,340       6,649     5,007   1,284 9,340 8,045
Total equity       $ 938,013 $ 1,015,049 $ 1,036,224 $ 1,035,732 $ 873,148       $ 1,036,224     $ 1,015,049   $ 938,013 $ 873,148 $ 754,368