Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 749,311	$ 681,433
Accounts receivable, net of allowance for doubtful accounts of $4,535 and $2,838, respectively	391,830	440,692
Inventories, net	416,030	381,334
Prepaid expenses and other assets	39,177	28,057
Income taxes receivable	1,296	146
Total current assets	1,597,644	1,531,662
Property, plant and equipment, net of accumulated depreciation of $416,263 and $406,375, respectively	172,080	166,148
Goodwill	191,616	191,616
Deferred income taxes	4,366	6,572
Other, net	98,734	102,670
Total assets	2,064,440	1,998,668
Current liabilities:
Current installments of long-term debt and capital lease obligations	15,333	12,396
Accounts payable	343,241	326,249
Income taxes payable	3,864	3,534
Accrued liabilities	83,684	70,202
Total current liabilities	446,122	412,381
Long-term debt and capital lease obligations, less current installments	202,122	211,252
Other long-term liabilities	10,359	9,570
Shareholders' equity:
Common stock, $0.10 par value; 145,000 shares authorized; issued and outstanding - 49,845 and 49,330, respectively	4,985	4,933
Additional paid-in capital	637,796	626,306
Retained earnings	773,943	748,402
Accumulated other comprehensive loss	(10,887)	(14,176)
Total shareholders' equity	1,405,837	1,365,465
Total liabilities and shareholders' equity	$ 2,064,440	$ 1,998,668

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.