CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 52,463	$ 102,239
Receivables, net of allowances of $3,911 and $5,045, respectively	168,626	219,116
Recoverable income taxes	3,443	12,048
Prepaid expenses	26,006	27,461
Other current assets	17,941	21,637
Total current assets	268,479	382,501
Noncurrent assets
Property and equipment, net	71,719	60,630
Software, net	197,861	237,941
Goodwill	915,657	913,261
Intangible assets, net	217,653	256,925
Deferred income taxes, net	91,117	90,872
Other noncurrent assets	37,439	33,658
TOTAL ASSETS	1,799,925	1,975,788
Current liabilities
Accounts payable	53,328	55,420
Employee compensation	42,218	31,213
Current portion of long-term debt	90,198	89,710
Deferred revenue	123,059	128,559
Income taxes payable	6,484	4,734
Other current liabilities	61,233	75,225
Total current liabilities	376,520	384,861
Noncurrent liabilities
Deferred revenue	40,552	42,081
Long-term debt	633,155	834,449
Deferred income taxes, net	24,578	28,067
Other noncurrent liabilities	29,482	31,930
Total liabilities	1,104,287	1,321,388
Commitments and contingencies (Note 14)
Stockholders' equity
Preferred stock; $0.01 par value; 5,000,000 shares authorized; no shares issued at June 30, 2016 and December 31, 2015
Common stock; $0.005 par value; 280,000,000 shares authorized; 140,525,055 shares issued at June 30, 2016 and December 31, 2015	702	702
Additional paid-in capital	578,044	561,379
Retained earnings	489,477	416,851
Treasury stock, at cost, 23,275,065 and 21,491,285 shares at June 30, 2016 and December 31, 2015, respectively	(298,350)	(252,956)
Accumulated other comprehensive loss	(74,235)	(71,576)
Total stockholders' equity	695,638	654,400
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 1,799,925	$ 1,975,788

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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- 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.