Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 515,793	$ 745,491
Short-term investments	265,107	179,204
Accounts receivable, less allowances of $537 and $537	25,608	28,272
Prepaid and other current assets	69,337	63,365
Total current assets	875,845	1,016,332
PROPERTY AND EQUIPMENT, NET	10,243	10,217
PATENTS, NET	425,685	436,339
DEFERRED TAX ASSETS	73,811	73,168
OTHER NON-CURRENT ASSETS	79,146	76,026
Total non-current assets	588,885	595,750
TOTAL ASSETS	1,464,730	1,612,082
CURRENT LIABILITIES:
Current portion of long-term debt	0	94,170
Accounts payable	12,204	13,393
Accrued compensation and related expenses	18,937	29,162
Deferred revenue	126,298	146,654
Taxes payable	225	51
Dividends payable	10,762	10,746
Other accrued expenses	17,407	11,382
Total current liabilities	185,833	305,558
LONG-TERM DEBT	354,823	350,588
LONG-TERM DEFERRED REVENUE	104,497	123,653
OTHER LONG-TERM LIABILITIES	43,981	46,002
TOTAL LIABILITIES	689,134	825,801
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS’ EQUITY:
Preferred Stock, $0.10 par value, 14,399 shares authorized, 0 shares issued and outstanding	0	0
Common Stock, $0.01 par value, 100,000 shares authorized, 71,322 and 71,268 shares issued and 30,749 and 30,701 shares outstanding	713	712
Additional paid-in capital	729,541	727,402
Retained earnings	1,402,048	1,412,779
Accumulated other comprehensive loss	(42)	(74)
TOTAL SHAREHOLDERS’ EQUITY	2,132,260	2,140,819
Treasury stock, 40,573 and 40,567 shares of common held at cost	1,379,611	1,379,262
Total InterDigital, Inc. shareholders’ equity	752,649	761,557
Noncontrolling interest	22,947	24,724
Total equity	775,596	786,281
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 1,464,730	$ 1,612,082