Interim Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net Income (Loss) Attributable to Parent	$ 58,051	$ 52,544
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	8,420	8,881
Amortization	7,094	5,122
Deferred tax benefit	(695)	(3,354)
Excess tax benefits from share-based payment arrangements	(4,495)	(256)
Share-based compensation	3,201	2,805
Other	37	26
Increase (decrease) in cash resulting from changes in:
Trade accounts receivable, net	41,500	20,650
Inventories	(13,543)	(5,017)
Other current assets	511	1,282
Trade accounts payable	(26,550)	(25,352)
Taxes payable	(10,436)	(11,124)
Accruals and other	(20,250)	(22,535)
Net cash provided by operating activities	42,845	23,672
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	189	36
Purchase of property, plant and equipment	(16,716)	(19,018)
Payments to Acquire Businesses, Net of Cash Acquired	(391)	0
Net cash used in investing activities	(16,918)	(18,982)
Cash flows from financing activities:
Proceeds from borrowings	145,879	141,959
Repayments of borrowings	(93,229)	(89,334)
Proceeds from stock option exercises	3,450	7,069
Repurchases of common stock	(82,498)	(72,300)
Excess tax benefits from share - based payment arrangements	4,495	256
Other financing activities	(235)	(483)
Net cash used in financing activities	(22,138)	(12,833)
Effect of exchange rate changes on cash and cash equivalents	141	(350)
Net (decrease) increase in cash and cash equivalents	3,930	(8,493)
Cash and cash equivalents:
Beginning of period	111,874	101,702
End of period	$ 115,804	$ 93,209