CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (UNAUDITED) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011
CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS (UNAUDITED) [Abstract]
Sales	$ 279,536	$ 194,397
Cost of sales	211,997	148,204
Gross profit	67,539	46,193
Selling, general and administrative expenses	36,227	26,740
Acquisition expenses	7,318	0
Operating income	23,994	19,453
Interest income	31	28
Interest expense	(3,339)	(169)
Other (expense) income, net	(460)	65
Earnings before income tax provision	20,226	19,377
Income tax provision	9,332	6,976
Net earnings	$ 10,894	$ 12,401
Basic (in dollars per share)	$ 0.35	$ 0.41
Diluted (in dollars per share)	$ 0.34	$ 0.40
Dividends per share (in dollars per share)	$ 0.125	$ 0.125

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 59

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=6909708&loc=d3e1043-128460