CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 274,305	$ 228,705
Investments	304,781	237,626
Accounts receivable, net	92,375	85,678
Inventories	37,258	40,645
Receivable from collaboration	0	428
Prepaid and other current assets	9,839	13,592
Total current assets	718,558	606,674
Property, plant and equipment, net	24,460	28,725
Goodwill	639,484	639,188
Intangible assets, net	1,092,178	1,196,771
Restricted cash	2,593	2,593
Other long-term assets	1,153	2,259
Total assets	2,478,426	2,476,210
Current liabilities:
Accounts payable	3,684	4,906
Accrued expenses	156,008	106,363
Current portion of long-term debt	21,166	17,500
Current portion of acquisition-related contingent consideration	97,068	96,967
Deferred revenues	34,951	20,185
Total current liabilities	312,877	245,921
Long-term liabilities:
Long-term debt, net	785,992	803,669
Convertible 2.5% notes, net	179,363	170,749
Acquisition-related contingent consideration	50,927	125,592
Deferred tax liabilities	197,066	189,145
Deferred revenues	14,850	5,093
Other long-term liabilities	2,962	3,777
Total liabilities	1,544,037	1,543,946
Commitments and contingencies (Note P)
Stockholders’ equity:
Preferred stock, par value $0.01 per share, 2,000,000 shares authorized; none issued	0	0
Common stock, par value $0.01 per share, 117,500,000 shares authorized; 34,336,147 and 34,733,117 shares issued and outstanding at December 31, 2016 and December 31, 2015, respectively	343	347
Additional paid-in capital	1,238,031	1,233,786
Accumulated other comprehensive loss	(3,838)	(4,205)
Accumulated deficit	(300,147)	(297,664)
Total stockholders’ equity	934,389	932,264
Total liabilities and stockholders’ equity	$ 2,478,426	$ 2,476,210