Business Segments (Tables)

6 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Summary of Net Sales and Results of Operations and Total Assets by Reportable Segment

(Dollars in thousands)	Net Sales				Income from Operations
Three months ended	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
North America	$	180,402	$	204,758	$	11,827	$	9,676
Europe		172,097		184,186		12,204		21,594
	$	352,499	$	388,944	$	24,031	$	31,270

(Dollars in thousands)	Depreciation and Amortization				Capital Expenditures
Three months ended	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
North America	$	7,950	$	8,603	$	4,435	$	8,565
Europe		15,392		15,384		10,838		6,781
	$	23,342	$	23,987	$	15,273	$	15,346

(Dollars in thousands)	Net Sales				Income from Operations
Six months ended	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
North America	$	365,518	$	408,908	$	18,026	$	23,461
Europe		344,674		366,484		24,644		35,443
	$	710,192	$	775,392	$	42,670	$	58,904

(Dollars in thousands)	Depreciation and Amortization				Capital Expenditures
Six months ended	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
North America	$	15,816	$	17,401	$	10,563	$	18,593
Europe		30,857		30,939		18,102		19,427
	$	46,673	$	48,340	$	28,665	$	38,020

(Dollars in thousands)	Property, Plant and Equipment, net				Goodwill and Intangible Assets
	June 30, 2019		December 31, 2018		June 30, 2019		December 31, 2018
North America	$	247,622	$	249,791	$	—	$	—
Europe		291,071		282,976		444,497		459,803
	$	538,693	$	532,767	$	444,497	$	459,803

(Dollars in thousands)	Total Assets
	June 30, 2019		December 31, 2018
North America	$	478,001	$	484,682
Europe		989,889		966,934
	$	1,467,890	$	1,451,616

Net Sales by Geographic Location

Net sales by geographic location are as follows:

	Three Months Ended				Six Months Ended
	June 30, 2019		June 30, 2018		June 30, 2019		June 30, 2018
(Dollars in thousands)
Net sales:
U.S.	$	26,466	$	30,527	$	54,722	$	61,010
Mexico		153,936		174,231		310,796		347,898
Germany		57,189		70,968		121,237		142,193
Poland		114,908		113,218		223,437		224,291
Consolidated net sales	$	352,499	$	388,944	$	710,192	$	775,392