Interim Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:
Net earnings	$ 132,073	$ 121,606
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	16,874	17,447
Amortization	14,377	10,929
Deferred tax benefit	(3,442)	(5,687)
Excess tax benefits from share-based payment arrangements	(9,569)	(519)
Share-based compensation	6,503	5,852
Other	74	408
Increase (decrease) in cash resulting from changes in:
Trade accounts receivable, net	39,967	12,583
Inventories	(13,733)	(8,158)
Other current assets	1,990	(5,690)
Trade accounts payable	(5,458)	(19,806)
Taxes payable	(19,250)	(2,820)
Accruals and other	(9,429)	(11,513)
Net cash provided by operating activities	150,977	114,632
Cash flows from investing activities:
Proceeds from sale of property, plant and equipment	296	115
Purchase of property, plant and equipment	(37,120)	(36,781)
Acquisitions	(3,255)	(213)
Net cash used in investing activities	(40,079)	(36,879)
Cash flows from financing activities:
Proceeds from borrowings	310,018	211,112
Repayments of borrowings	(256,611)	(136,330)
Proceeds from stock option exercises	9,032	12,549
Repurchases of common stock	(183,978)	(144,844)
Excess tax benefits from share - based payment arrangements	9,569	519
Other financing activities	(81)	(1,170)
Net cash used in financing activities	(112,051)	(58,164)
Effect of exchange rate changes on cash and cash equivalents	291	(1,074)
Net (decrease) increase in cash and cash equivalents	(862)	18,515
Cash and cash equivalents:
Beginning of period	111,874	101,702
End of period	$ 111,012	$ 120,217