Interim Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net Income (Loss) Attributable to Parent	$ 65,674	$ 63,051
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	8,122	8,301
Amortization	8,424	7,528
Deferred tax benefit	(3,304)	(1,670)
Excess tax benefits from share-based payment arrangements	(5,805)	(441)
Share-based compensation	3,656	3,496
Other	(77)	(16)
Increase (decrease) in cash resulting from changes in:
Trade accounts receivable, net	28,610	38,179
Inventories	(10,267)	(17,703)
Other current assets	(1,453)	183
Trade accounts payable	(21,905)	(13,927)
Taxes payable	519	(2,685)
Accruals and other	(36,494)	(25,700)
Net cash provided by operating activities	35,700	58,596
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	135	42
Purchase of property, plant and equipment	(14,348)	(18,539)
Payments to Acquire Businesses, Net of Cash Acquired	(4,329)	(200)
Payments for (Proceeds from) Derivative Instrument, Investing Activities	2,128	(8,384)
Net cash used in investing activities	(16,414)	(27,081)
Cash flows from financing activities:
Proceeds from borrowings	229,413	150,996
Repayments of borrowings	(124,467)	(77,486)
Proceeds from stock option exercises	5,909	9,546
Repurchases of common stock	(125,000)	(123,745)
Excess tax benefits from share - based payment arrangements	5,805	441
Proceeds from (Payments for) Other Financing Activities	(125)	0
Net cash used in financing activities	(8,465)	(40,248)
Effect of exchange rate changes on cash and cash equivalents	887	(1,171)
Net (decrease) increase in cash and cash equivalents	11,708	(9,904)
Cash and cash equivalents:
Beginning of period	98,887	85,263
End of period	$ 110,595	$ 75,359