CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
ASSETS:
Cash and cash equivalents	$ 265,194	$ 368,550
Restricted cash and cash equivalents	47	4,091
Accounts receivable (net of allowance of $1,518 and $675, respectively)	79,444	53,444
Prepaid and other current assets	16,411	11,881
Current assets of discontinued operations	175	75
Total current assets	361,271	438,041
Property and equipment (net of accumulated depreciation of $13,609 and $13,043, respectively)	40,448	36,431
Goodwill	166,330	113,368
Intangible assets, net	95,970	81,125
Deferred income tax assets	75,484	20,156
Other non-current assets	1,708	1,910
Non-current assets of discontinued operations	2,428	2,428
Total assets	743,639	693,459
LIABILITIES:
Accounts payable, trade	13,355	9,250
Accrued expenses and other current liabilities	68,711	77,183
Current contingent consideration	7,327	46,576
Current liabilities of discontinued operations	18,988	14,507
Total current liabilities	108,381	147,516
Long-term debt	247,696	238,199
Non-current contingent consideration	9,019	11,273
Other non-current liabilities	2,077	1,597
Total liabilities	367,173	398,585
Commitments and contingencies
SHAREHOLDERS' EQUITY:
Preferred stock $.01 par value; 5,000,000 shares authorized; none issued or outstanding	0	0
Common stock $.01 par value; 50,000,000 shares authorized; 15,390,409 and 14,218,572 shares issued, respectively, and 12,945,961 and 11,979,434 shares outstanding, respectively	154	142
Additional paid-in capital	1,125,185	1,087,582
Accumulated deficit	(607,182)	(708,354)
Treasury stock; 2,444,448 and 2,239,138 shares, respectively	(142,268)	(85,085)
Noncontrolling interest	577	589
Total shareholders' equity	376,466	294,874
Total liabilities and shareholders' equity	$ 743,639	$ 693,459