Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net income (loss)	$ 22,554	$ (99,917)
Deduct: Loss from discontinued operations	(55)	(253)
Income (loss) from continuing operations	22,609	(99,664)
Adjustments to reconcile net loss to net cash provided by operating activities:
Deferred income taxes	10,690	9,162
Depreciation and amortization	31,341	12,381
Intangible asset impairment	2,000	24,226
Allowances against accounts receivable	11,858	6,280
Share-based compensation expense	4,709	5,582
Tax deficiency on exercises of stock options	(357)	(382)
Other, net	646	624
Changes in assets and liabilities:
Increase in accounts receivable	(41,985)	(33,205)
Decrease in inventories	17,195	(2,773)
(Increase) decrease in prepaid expenses and other assets	(1,742)	2,139
Increase in accounts payable, accrued expenses and other liabilities	32,133	196,544
Increase in payables due to distribution agreement partners	(4,388)	25,125
Increase in income taxes receivable/payable	17,737	(45,899)
Net cash provided by operating activities	102,446	100,140
Cash flows from investing activities:
Capital expenditures	(7,984)	(5,587)
Adjustment to purchase price of Anchen acquistion	3,786	0
Business acquisitions	(24,686)	0
Purchases of intangibles	0	(450)
Purchases of available for sale debt securities	(6,566)	(23,410)
Proceeds from maturity and sale of available for sale marketable debt securities	12,500	12,000
Net cash used in investing activities	(22,950)	(17,447)
Cash flows from financing activities:
Proceeds from issuances of common stock upon exercise of stock options	5,436	9,810
Proceeds from the issuance of common stock under the Employee Stock Purchase Program	172	170
Excess tax benefits on share-based compensation	4,760	6,859
Purchase of treasury stock	(2,103)	(7,062)
Principal payments under long-term debt	(8,750)
Cash settlement of share-based compensation	0	(4,133)
Net cash provided by (used in) financing activities	(485)	5,644
Net (decrease) increase in cash and cash equivalents	79,011	88,337
Cash and cash equivalents at beginning of period	162,516	218,674
Cash and cash equivalents at end of period	241,527	307,011
Cash (received) paid during the period for:
Income taxes, net	6,893	9,120
Interest paid	4,783	198
Non-cash transactions:
Capital expenditures incurred but not yet paid	$ 1,152	$ 698