The financial position of the Unrestricted Subsidiaries as of March 31, 2016 and December 31, 2015 is as follows (in thousands):



	March 31, 2016			December 31, 2015
ASSETS
Cash and cash equivalents	$	36,839		$	16,482
Accounts receivable	62,028			79,283
Prepaid expenses and other current assets	5,879			5,437
Deferred income taxes, current	—			3,382
Total current assets	104,746			104,584
Property and equipment, net	26,093			25,353
Trade names, net	75,511			73,034
Patent and patent licenses, net	16,609			18,071
Customer relationships, net	63,508			68,317
Goodwill	298,858			304,943
Other purchased intangibles, net	8,545			7,810
Deferred income taxes, non-current	1,092			2,373
Other assets	3,204			—
Total assets	$	598,166		$	604,485
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued expenses	$	53,843		$	88,580
Deferred revenue, current	8,420			6,554
Total current liabilities	62,263			95,134
Long-term debt	182,488			155,000
Deferred income taxes, non-current	7,435			11,270
Other long-term liabilities	15,109			13,546
Total liabilities	267,295			274,950
Additional paid-in capital	320,104			319,728
Retained earnings	12,057			11,552
Accumulated other comprehensive loss	(1,290		)	(1,745		)
Total stockholders' equity	330,871			329,535
Total liabilities and stockholders' equity	$	598,166		$	604,485

The results of operations of the Unrestricted Subsidiaries for the three months ended March 31, 2016 and 2015 is as follows (in thousands):



	Three Months Ended March 31,
	2016		2015
Revenues	$	62,457	$	44,420

Cost of revenues	5,311		4,354
Gross profit	57,146		40,066
Operating expenses:
Sales and marketing	26,461		17,662
Research, development and engineering	2,482		1,901
General and administrative	22,819		17,979
Total operating expenses	51,762		37,542
Income from operations	5,384		2,524
Interest expense, net	4,127		2,517
Other expense, net	172		243
Income (loss) before income taxes	1,085		(236		)
Income tax expense	580		319
Net income (loss)	$	505	$	(555	)