Unaudited Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
ASSETS
Cash and cash equivalents	$ 146,934	$ 149,032
Short-term investments	141,169	227,845
Accounts receivable, net	288,483	256,014
Inventories	185,383	174,903
Deferred income taxes	25,228	22,691
Prepaid expenses and other current assets	41,708	33,724
Total current assets	828,905	864,209
Property and equipment, net	26,397	19,025
Intangibles, net	95,149	27,621
Goodwill	155,405	100,880
Total other non-current assets	22,884	22,834
Total assets	1,128,740	1,034,569
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	129,535	87,310
Accrued employee compensation	16,275	18,338
Other accrued liabilities	134,884	126,255
Deferred revenue	31,838	27,645
Income taxes payable	0	1,382
Total current liabilities	312,532	260,930
Non-current income taxes payable	12,972	13,735
Other non-current liabilities	6,657	5,293
Total liabilities	332,161	279,958
Commitments and contingencies (Note 9)
Stockholders' equity:
Common stock	39	38
Additional paid-in capital	407,505	394,427
Cumulative other comprehensive income	48	4
Retained earnings	388,987	360,142
Total stockholders' equity	796,579	754,611
Total liabilities and stockholders' equity	$ 1,128,740	$ 1,034,569