CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 77,086	$ 48,132
Restricted cash and cash equivalents	0	4,073
Trade accounts receivable, net of allowances of $6,015 and $5,572	151,607	132,241
Inventories, net	221,978	211,429
Prepaid expenses and other current assets	43,894	42,620
Total current assets	494,565	438,495
Property, plant and equipment, net	210,330	205,181
Intangible assets, net	594,856	603,740
Goodwill	516,103	512,389
Deferred tax assets	7,128	6,932
Other assets	7,280	7,487
Total assets	1,830,262	1,774,224
Current liabilities:
Borrowings under senior credit facility	17,813	14,375
Accounts payable, trade	53,993	34,772
Deferred revenue	7,222	5,666
Accrued compensation	32,763	45,154
Accrued expenses and other current liabilities	44,839	39,160
Total current liabilities	156,630	139,127
Long-term borrowings under senior credit facility	491,563	481,875
Long-term convertible securities	220,626	218,240
Deferred tax liabilities	156,449	154,891
Other liabilities	28,607	28,648
Total liabilities	$ 1,053,875	$ 1,022,781
Commitments and contingencies
Stockholders’ equity:
Preferred stock; no par value; 15,000 authorized shares; none outstanding	$ 0	$ 0
Common stock; $0.01 par value; 60,000 authorized shares; 45,992 and 45,857 issued at March 31, 2016 and December 31, 2015, respectively	460	459
Additional paid-in capital	1,022,150	1,020,128
Treasury stock, at cost; 8,915 shares at March 31, 2016 and December 31, 2015	(367,121)	(367,121)
Accumulated other comprehensive loss	(36,665)	(47,902)
Retained earnings	157,563	145,879
Total stockholders’ equity	776,387	751,443
Total liabilities and stockholders’ equity	$ 1,830,262	$ 1,774,224