Interim Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net Income (Loss) Attributable to Parent	$ 92,466	$ 65,674
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	7,966	8,122
Amortization	10,045	8,424
Deferred tax benefit	(1,470)	(3,304)
Share-based compensation	3,822	3,656
Gain (Loss) on Disposition of Property Plant Equipment	(3,394)	0
Other	(10)	(77)
Increase (decrease) in cash resulting from changes in:
Trade accounts receivable, net	23,289	28,610
Inventories	(15,795)	(10,267)
Other current assets	(2,045)	(1,453)
Trade accounts payable	(10,614)	(21,905)
Taxes payable	(9,209)	519
Accruals and other	(27,452)	(36,494)
Net cash provided by operating activities	67,599	41,505
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	10,003	135
Purchase of property, plant and equipment	(21,015)	(14,348)
Payments to Acquire Businesses, Net of Cash Acquired	0	(4,329)
Payments for (Proceeds from) Derivative Instrument, Investing Activities	312	2,128
Net cash used in investing activities	(10,700)	(16,414)
Cash flows from financing activities:
Proceeds from borrowings	472,732	229,413
Repayments of borrowings	(409,881)	(124,467)
Proceeds from stock option exercises	8,201	5,909
Repurchases of common stock	(124,997)	(125,000)
Proceeds from (Payments for) Other Financing Activities	0	(125)
Net cash used in financing activities	(53,945)	(14,270)
Effect of exchange rate changes on cash and cash equivalents	3,265	887
Net (decrease) increase in cash and cash equivalents	6,219	11,708
Cash and cash equivalents:
Beginning of period	158,674	98,887
End of period	$ 164,893	$ 110,595