Interim Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 98,949	$ 148,687
Trade accounts receivable, less allowances of $17,016 at March 31, 2018 and $15,549 at December 31, 2017	483,919	528,615
Inventories	278,318	255,390
Other current assets and prepaid expenses	66,186	74,031
Total current assets	927,372	1,006,723
Property, plant and equipment, net	696,890	668,271
Goodwill	544,784	539,838
Other intangible assets, net	224,727	226,718
Non-current deferred tax assets, net	41,717	41,425
Other non-current assets	76,417	66,830
Total assets	2,511,907	2,549,805
Current liabilities:
Trade accounts payable	164,639	167,627
Accrued and other liabilities	159,846	152,834
Accrued compensation and related items	103,793	170,159
Deferred revenue and customer prepayments	130,704	107,166
Taxes payable	63,017	72,210
Short-term borrowings and current maturities of long-term debt	14,883	19,677
Total current liabilities	636,882	689,673
Long-term debt	978,715	960,170
Non-current deferred tax liabilities	46,689	51,230
Other non-current liabilities	288,874	301,452
Total liabilities	1,951,160	2,002,525
Commitments and contingencies (Note 15)
Shareholders' equity:
Preferred stock, $0.01 par value per share; authorized 10,000,000 shares	0	0
Common stock, $0.01 par value per share; authorized 125,000,000 shares; issued 44,786,011 and 44,786,011 shares; outstanding 25,392,875 and 25,541,393 shares at March 31, 2018 and December 31, 2017, respectively	448	448
Additional paid-in capital	751,492	747,138
Treasury stock at cost (19,393,136 shares at March 31, 2018 and 19,244,618 shares at December 31, 2017)	(3,481,032)	(3,368,182)
Retained earnings	3,526,355	3,433,282
Accumulated Other Comprehensive Income (Loss), Net of Tax	(236,516)	(265,406)
Total shareholders' equity	560,747	547,280
Total liabilities and shareholders' equity	$ 2,511,907	$ 2,549,805