Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 117,676	$ 143,693
Marketable securities	27,165	26,067
Trade accounts receivable, net of allowance for doubtful accounts of $5,647 and $4,761, respectively	338,594	270,133
Inventories	646,152	557,369
Deferred income tax assets	16,718	17,897
Other current assets	89,833	70,539
Total current assets	1,236,138	1,085,698
Marketable securities	0	5,152
Property and equipment, less accumulated depreciation	435,601	363,419
Other assets, net	13,209	14,014
Total assets	1,684,948	1,468,283
LIABILITIES AND STOCKHOLDER'S EQUITY
Accounts payable	73,779	60,474
Accrued expenses	111,962	96,412
Income taxes payable	2,077	5,299
Total current liabilities	187,818	162,185
Deferred income tax liabilities	38,154	23,586
Commitments and contingencies (notes 5, 9, and 10)
Stockholders' equity:
Preferred stock, 5,000,000 shares authorized	0	0
Common stock, 400,000,000 shares authorized, 295,258,674 and 294,861,424 shares issued and outstanding, respectively	2,953	2,948
Additional paid-in capital	16,856	2,889
Retained earnings	1,424,371	1,258,183
Accumulated other comprehensive income	14,796	18,492
Total stockholders' equity	1,458,976	1,282,512
Total liabilities and stockholders' equity	$ 1,684,948	$ 1,468,283