Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2017

Debt Disclosure [Abstract]

Long-term Debt

Long-term debt consisted of the following:

	Sept. 30, 2017		Sept. 30, 2016		Dec. 31, 2016
	(Dollars in thousands)
Bank debt
Bank revolving loans	$	598,751	$	306,557	$	99,500
U.S. term loans	800,000		346,750		310,250
Canadian term loans	27,365		45,393		44,274
Euro term loans	—		234,853		196,668
Other foreign bank revolving and term loans	49,596		95,121		120,500
Total bank debt	1,475,712		1,028,674		771,192
5% Senior Notes	280,000		500,000		500,000
5½% Senior Notes	300,000		300,000		300,000
4¾% Senior Notes	300,000		—		—
3¼% Senior Notes	767,910		—		—
Total debt - principal	3,123,622		1,828,674		1,571,192
Less unamortized debt issuance costs	17,452		10,263		9,609
Total debt	3,106,170		1,818,411		1,561,583
Less current portion	640,390		454,212		217,127
	$	2,465,780	$	1,364,199	$	1,344,456