CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 325,211	$ 130,876
Short-term investments, net of allowance for credit losses of $275 and $0 as of March 31, 2020 and December 31, 2019, respectively	120,625	124,112
Accounts receivable, net of allowance for credit losses of $5,776 and $3,920 as of March 31, 2020 and December 31, 2019, respectively	947,973	1,166,376
Prepaid expenses and other current assets	48,002	27,857
TOTAL CURRENT ASSETS	1,441,811	1,449,221
Property and equipment, net	78,877	64,012
Operating lease assets	200,242	173,449
Deferred income taxes	18,950	18,950
Other assets, non-current	27,324	23,129
TOTAL ASSETS	1,767,204	1,728,761
Current liabilities:
Accounts payable	663,410	868,618
Accrued expenses and other current liabilities	48,437	47,178
Operating lease liabilities	22,527	14,577
TOTAL CURRENT LIABILITIES	734,374	930,373
Operating lease liabilities, non-current	204,688	174,873
Debt, net	143,000
Other liabilities, non-current	11,108	10,998
TOTAL LIABILITIES	1,093,170	1,116,244
Commitments and contingencies (Note 10)
STOCKHOLDERS’ EQUITY
Preferred stock, par value $0.000001; 100,000 shares authorized, zero shares issued and outstanding as of March 31, 2020 and December 31, 2019
Common stock, par value $0.000001 Class A, 1,000,000 shares authorized; 40,865 and 40,305 shares issued and outstanding as of March 31, 2020 and December 31, 2019, respectively Class B, 95,000 shares authorized; 5,170 and 5,171 shares issued and outstanding as of March 31, 2020 and December 31, 2019, respectively	0	0
Additional paid-in capital	417,769	380,079
Accumulated other comprehensive income	158
Retained earnings	256,107	232,438
TOTAL STOCKHOLDERS’ EQUITY	674,034	612,517
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,767,204	$ 1,728,761