CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 34,485	$ 17,835
Accounts and unbilled receivables, net of allowance of $494 and $415, respectively	64,662	49,484
Deferred tax asset	1,730	2,109
Prepaid expense and other current assets	5,374	2,066
Total current assets	106,251	71,494
Restricted cash	497	394
Identifiable long-lived assets	4,789	3,021
Goodwill	85,940	37,286
Intangible assets, net	35,113	13,860
Other assets	2,532	4,704
Total assets	235,122	130,759
Current liabilities
Accounts payable	9,724	6,700
Current maturities of long-term debt	5,546	2,250
Deferred revenue	9,112	5,154
Accrued expenses	27,971	17,076
Total current liabilities	52,353	31,180
Long-term debt, net of current maturities	116,485	47,947
Deferred tax liability	396
Other liabilities	7,476	4,521
Total liabilities	176,710	83,648
Commitments and contingencies (Note 13)
Redeemable noncontrolling interest	1,376	939
Stockholders' equity
Preferred stock, $0.001 par value; 10,000 shares authorized; none issued
Common stock, $.001 par value, 100,000 shares authorized; 44,203 shares issued and 42,140 outstanding at December 31, 2016 and 37,977 shares issued and 37,219 outstanding at December 31, 2015	44	38
Additional paid-in-capital	228,692	204,904
Treasury stock (2,063 and 758 common shares, respectively, at cost)	(8,216)	(3,053)
Accumulated other comprehensive loss	(7,800)	(6,538)
Accumulated deficit	(155,684)	(149,179)
Total stockholders' equity	57,036	46,172
Total liabilities, redeemable noncontrolling interest and stockholders’ equity	$ 235,122	$ 130,759