CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets
Cash	$ 22,987	$ 34,050
Accounts receivable, net of allowance for doubtful accounts of $3,181 and $2,887	43,148	46,380
Income taxes receivable	731	916
Prepaid and other current assets	3,312	3,072
Assets held for sale	0	4,265
Total current assets	70,178	88,683
Fixed assets, net	16,610	15,255
Acquired intangible assets, net	49,120	65,292
Goodwill	171,745	198,598
Deferred income taxes	306	322
Other assets	2,136	785
Total assets	310,095	368,935
Current liabilities
Accounts payable and accrued expenses	20,220	23,883
Deferred revenue	84,615	83,316
Income taxes payable	3,467	4,006
Liabilities held for sale	0	2,334
Total current liabilities	108,302	113,539
Long-term debt, net	84,760	99,436
Deferred income taxes	7,901	10,849
Accrual for unrecognized tax benefits	2,513	3,436
Other long-term liabilities	2,736	3,062
Total liabilities	206,212	230,322
Commitments and contingencies (Note 9)
Stockholders' equity
Convertible preferred stock, $.01 par value, authorized 20,000 shares; no shares issued and outstanding	0	0
Common stock, $.01 par value, authorized 240,000; issued 81,989 and 80,717 shares, respectively; outstanding: 49,591 and 52,622 shares, respectively	820	807
Additional paid-in capital	366,247	352,208
Accumulated other comprehensive loss	(32,276)	(20,468)
Accumulated earnings	44,078	49,476
Treasury stock, 32,398 and 28,095 shares, respectively	(274,986)	(243,410)
Total stockholders’ equity	103,883	138,613
Total liabilities and stockholders’ equity	$ 310,095	$ 368,935

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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- 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.