CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 494,777	$ 554,846
Restricted cash	46,353	45,522
Marketable securities	34,292	34,529
Accounts receivable, net	561,244	392,746
Prepaid insurance	57,670	10,164
Other current assets	53,718	39,461
Nontrade Receivables	3,451	0
Total current assets	1,251,505	1,077,268
Property and equipment, net of accumulated depreciation	220,262	216,256
Right-of-use (“ROU”) leased assets	67,688	60,663
Prepaid health insurance	9,000	9,000
Deposits – health insurance	7,900	7,900
Deposits – workers’ compensation	193,067	186,331
Goodwill and other intangible assets, net	12,707	12,707
Deferred income taxes, net	0	9,603
Other assets	6,955	4,548
Total assets	1,769,084	1,584,276
Current liabilities:
Accounts payable	5,841	6,203
Payroll taxes and other payroll deductions payable	310,519	377,960
Accrued worksite employee payroll cost	503,334	334,836
Accrued health insurance costs	72,136	32,685
Accrued workers’ compensation costs	49,696	48,186
Accrued corporate payroll and commissions	41,720	44,277
Other accrued liabilities	61,105	60,777
Total current liabilities	1,044,351	904,924
Noncurrent liabilities:
Accrued workers’ compensation costs	190,336	195,239
Long-term debt	369,400	369,400
Operating lease liabilities, net of current	71,716	64,289
Deferred income taxes, net	13,343	0
Other accrued liabilities, net of current	6,294	6,292
Total noncurrent liabilities	651,089	635,220
Commitments and contingencies
Stockholders’ equity:
Common stock	555	555
Additional paid-in capital	81,329	95,528
Treasury stock, at cost	(628,391)	(626,984)
Retained earnings	620,151	575,033
Total stockholders’ equity	73,644	44,132
Total liabilities and stockholders’ equity	$ 1,769,084	$ 1,584,276