Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 929,355	$ 1,352,741
Marketable securities (amortized cost of $586,628 and allowance for credit losses of $215 at March 31, 2020)	579,340	811,506
Accounts receivable trade	293,612	476,425
Accounts Receivable, Allowance for Credit Loss	(3,331)	(1,386)
Accounts receivable trade, net	290,281	475,039
Accounts receivable, unbilled and retainage	122,332	183,473
Accounts receivable, unbilled and retainage, allowance for credit losses	(1,223)	0
Accounts receivable, unbilled and retainage, net	121,109	183,473
Inventories	479,792	443,513
Balance of systems parts	44,718	53,583
Project assets	403	3,524
Prepaid expenses and other current assets	302,845	276,455
Total current assets	2,747,843	3,599,834
Property, plant and equipment, net	2,244,175	2,181,149
PV solar power systems, net	470,709	476,977
Project assets	388,511	333,596
Deferred tax assets, net	213,600	130,771
Restricted marketable securities (amortized cost $242,156 and allowance for credit losses of $30 at March 31, 2020)	246,410	223,785
Goodwill	14,462	14,462
Intangibles assets, net	63,918	64,543
Inventories	182,259	160,646
Other assets	377,254	329,926
Total assets	6,949,141	7,515,689
Current liabilities:
Accounts payable	173,762	218,081
Income taxes payable	8,287	17,010
Accrued expenses	296,796	351,260
Current portion of long-term debt	81,807	17,510
Deferred revenue	136,998	323,217
Accrued litigation	13,000	363,000
Other current liabilities	21,785	28,130
Total current liabilities	732,435	1,318,208
Accrued solar module collection and recycling liability	138,009	137,761
Long-term debt	390,588	454,187
Other liabilities	519,487	508,766
Total liabilities	1,780,519	2,418,922
Commitments and contingencies
Stockholders' equity:
Common stock, $0.001 par value per share; 500,000,000 shares authorized; 105,905,580 and 105,448,921 shares issued and outstanding at March 31, 2020 and December 31, 2019, respectively	106	105
Additional paid-in capital	2,844,055	2,849,376
Accumulated earnings	2,408,111	2,326,620
Accumulated other comprehensive loss	(83,650)	(79,334)
Total stockholders' equity	5,168,622	5,096,767
Total liabilities and stockholders' equity	$ 6,949,141	$ 7,515,689