CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets
Cash	$ 152,297	$ 127,009
Trade accounts receivable, net	83,767	82,722
Prepaid expenses & other current assets	11,780	15,033
Total current assets	247,844	224,764
Property and equipment, net	9,325	9,726
Intangible assets, net	4,866	3,588
Deferred income taxes, net	1,584	2,307
Other assets	1,992	477
Total assets	265,611	240,862
Current liabilities
Accounts payable	67,345	73,252
Accrued expenses	24,880	23,395
Other current liabilities	3,810	3,150
Total current liabilities	96,035	99,797
Other long-term liabilities	7,968	7,162
Total liabilities	104,003	106,959
Commitments and contingencies (Notes 1 and 2)	0	0
Stockholders' equity
Common stock, $0.0001 par, 200,000 shares authorized, 66,268 and 65,982 shares issued and outstanding	7	7
Additional paid-in capital	110,103	106,669
Retained earnings	51,498	27,227
Total stockholders' equity	161,608	133,903
Total liabilities and stockholders' equity	$ 265,611	$ 240,862

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.