Revision to Noncontrolling Interest (Tables)

12 Months Ended

Dec. 31, 2019

Accounting Changes and Error Corrections [Abstract]

Effect of the revision on the financial statements

The following tables present the effect of the revision on the consolidated statements of income, statements of comprehensive income, balance sheets and statements of shareholders' equity (in thousands, except per share data). The correction of this error has no impact to the previously reported consolidated statements of cash flows for any periods.

	Statements of Income and Statements of Comprehensive Income Impact
	Year Ended
	December 31,	December 31,
	2017	2018
Net loss attributable to noncontrolling interest - As Reported	$3,579	$4,393
Net loss attributable to noncontrolling interest - As Revised	$5,506	$5,556
Net income attributable to InterDigital, Inc. - As Reported	$174,293	$63,868
Net income attributable to InterDigital, Inc. - As Revised	$176,220	$65,031
Net income per common share, Basic - As Reported	$5.04	$1.85
Net income per common share, Basic - As Revised	$5.09	$1.89
Net income per common share, Diluted - As Reported	$4.87	$1.81
Net income per common share, Diluted - As Revised	$4.93	$1.84
Total comprehensive income attributable to InterDigital, Inc. - As Reported	$172,724	$63,929
Total comprehensive income attributable to InterDigital, Inc. - As Revised	$174,651	$65,092

	Balance Sheets and Statements of Shareholders' Equity Impact
	December 31,	December 31,	December 31,
	2016	2017	2018
Retained earnings - As Reported	$1,120,766	$1,249,091	$1,426,266
Retained earnings - As Revised	$1,127,380	$1,257,632	$1,435,970
Total InterDigital, Inc. shareholders’ equity - As Reported	$739,709	$855,267	$927,025
Total InterDigital, Inc. shareholders’ equity - As Revised	$746,323	$863,808	$936,729
Noncontrolling interest - As Reported	$14,659	$17,881	$10,988
Noncontrolling interest - As Revised	$8,045	$9,340	$1,284
Total equity - As Reported	$754,368	$873,148	$938,013
Total equity - As Revised	$754,368	$873,148	$938,013