Consolidated Balance Sheets (USD $)	Mar. 31, 2013	Dec. 31, 2012
ASSETS
Cash and cash equivalents	$ 197,577,000	$ 142,162,000
Short-term investments	151,436,000	156,756,000
Accounts receivable, net	113,606,000	92,249,000
Other receivable	102,049,000
Inventory, net	82,090,000	89,764,000
Deferred income taxes	44,365,000	42,529,000
Prepaid expenses and other current assets	7,804,000	22,083,000
Total current assets	698,927,000	545,543,000
Property, plant and equipment, net	176,963,000	180,758,000
Other assets	43,128,000	42,751,000
Deferred income taxes	21,372,000	19,394,000
Intangible assets, net	40,809,000	47,950,000
Goodwill (in Dollars)	27,574,000	27,574,000
Total assets	1,008,773,000	863,970,000
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	30,587,000	41,340,000
Accrued expenses	120,612,000	92,742,000
Accrued profit sharing and royalty expenses	22,553,000	4,936,000
Deferred revenue	4,452,000	6,277,000
Total current liabilities	178,204,000	145,295,000
Deferred revenue	7,074,000	6,362,000
Other liabilities	25,038,000	21,210,000
Total liabilities	210,316,000	172,867,000
Commitments and contingencies (Note 9)
Stockholders’ equity:
Preferred stock, $0.01 par value, 2,000,000 shares authorized, 0 shares outstanding at March 31, 2013 and December 31, 2012
Common stock, $0.01 par value, 90,000,000 shares authorized and 68,735,134 and 68,516,251 shares issued at March 31, 2013 and December 31, 2012, respectively	687,000	685,000
Additional paid-in capital	320,124,000	314,717,000
Treasury stock - 243,729 shares	(2,157,000)	(2,157,000)
Accumulated other comprehensive income	1,747,000	5,244,000
Retained earnings	478,056,000	372,614,000
Total stockholders’ equity	798,457,000	691,103,000
Total liabilities and stockholders’ equity	$ 1,008,773,000	$ 863,970,000