Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Operating activities:
Consolidated net (loss) income	$ (24,789)	$ 1,148
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	46,521	46,289
Amortization of Financing Costs and Discounts	12,244	11,413
Stock-based compensation	24,779	24,002
Valuation Allowances and Reserves, Period Increase (Decrease)	4,062	2,649
Other non-cash adjustments	11,317	3,881
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable	(5,519)	(8,253)
Inventory	(27,190)	(16,749)
Prepaid expenses and other current assets	(1,837)	(2,838)
Accounts payable and accrued liabilities	16,037	17,915
Increase Decrease In Litigation Liability	(30,000)	7,500
Accrued payroll and related expenses	151	(1,824)
Net cash provided by operating activities	96,484	70,133
Goodwill and Intangible Asset Impairment	10,708	0
Investing activities:
Cash paid for business and asset acquisitions	(59)	(8,019)
Purchases of property and equipment	(45,692)	(38,018)
Purchases of marketable securities	(177,850)	(164,338)
Sales of marketable securities	(142,051)	(183,756)
Net cash used in investing activities	(81,550)	(26,619)
Financing activities:
Principal payment of 2013 Senior Convertible Notes	0	(74,311)
Excess Tax Benefit from Share-based Compensation, Financing Activities	0	5,247
Proceeds from the issuance of common stock	15,341	3,492
Payments for Repurchase of Common Stock	(664)	0
Other assets	(1,166)	(72)
Net cash provided by (used in) financing activities	13,511	(65,644)
Effect of exchange rate changes on cash	(613)	(553)
Increase (decrease) in cash and cash equivalents	27,832	(22,683)
Cash and cash equivalents at beginning of period	102,825	123,299
Cash and cash equivalents at end of period	$ 130,657