CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash	$ 186,535	$ 191,700
Trade accounts receivable, net	113,116	80,904
Prepaid expenses & other current assets	12,603	13,730
Total current assets	312,254	286,334
Property and equipment, net	10,956	10,256
Right of use lease assets, net	11,924	0
Intangible assets, net	23,195	13,604
Goodwill	5,965	0
Other assets	353	332
Total assets	364,647	310,526
Current liabilities:
Accounts payable	83,708	60,092
Accrued expenses	22,713	24,150
Lease liabilities	4,077	0
Other current liabilities	5,441	4,883
Total current liabilities	115,939	89,125
Deferred income taxes, net	1,757	781
Lease liabilities	8,263	0
Other long-term liabilities	9,346	8,931
Total liabilities	135,305	98,837
Commitments and contingencies (Notes 2, 3, 4 and 6)	0	0
Stockholders' equity:
Common stock, $0.0001 par, 200,000 shares authorized, 66,956 and 66,569 shares issued and outstanding	7	7
Additional paid-in capital	120,204	117,763
Retained earnings	109,131	93,919
Total stockholders' equity	229,342	211,689
Total liabilities and stockholders' equity	$ 364,647	$ 310,526