Operating Segments and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Reportable segment information

The following table sets forth the information about our operating segments for the periods indicated:

(Dollars in thousands)	Advanced Connectivity Solutions		Elastomeric Material Solutions		Power Electronics Solutions		Other		Total
2017
Net sales	$	301,092	$	312,661	$	184,954	$	22,336	$	821,043
Operating income	$	56,186	$	51,404	$	16,036	$	7,153	$	130,779
Total assets	$	353,786	$	489,456	$	261,034	$	20,858	$	1,125,134
Capital expenditures	$	9,900	$	7,563	$	9,238	$	514	$	27,215
Depreciation & amortization	$	16,351	$	16,270	$	10,572	$	906	$	44,099
Investment in unconsolidated joint ventures	$	—	$	18,324	$	—	$	—	$	18,324
Equity income in unconsolidated joint ventures	$	—	$	4,898	$	—	$	—	$	4,898
2016
Net sales	$	277,787	$	203,181	$	152,367	$	22,979	$	656,314
Operating income	$	43,965	$	26,593	$	5,965	$	7,329	$	83,852
Total assets	$	361,746	$	421,011	$	247,187	$	26,556	$	1,056,500
Capital expenditures	$	7,569	$	4,051	$	6,009	$	507	$	18,136
Depreciation & amortization	$	15,654	$	10,141	$	11,208	$	844	$	37,847
Investment in unconsolidated joint ventures	$	—	$	16,183	$	—	$	—	$	16,183
Equity income in unconsolidated joint ventures	$	—	$	4,146	$	—	$	—	$	4,146
2015
Net sales	$	267,630	$	180,898	$	150,288	$	42,627	$	641,443
Operating income	$	45,115	$	19,979	$	3,750	$	7,411	$	76,255
Total assets	$	315,358	$	264,982	$	320,755	$	29,260	$	930,355
Capital expenditures	$	15,532	$	4,103	$	4,185	$	1,017	$	24,837
Depreciation & amortization	$	15,403	$	9,280	$	7,855	$	1,516	$	34,054
Investment in unconsolidated joint ventures	$	—	$	15,348	$	—	$	—	$	15,348
Equity income in unconsolidated joint ventures	$	—	$	2,890	$	—	$	—	$	2,890

Reconciliation of Operating Income to the Consolidated Statements of Operations

The following table sets forth the operating income reconciliation to the consolidated statements of operations for the periods indicated:

(Dollars in thousands)	2017			2016			2015
Operating income	$	130,779		$	83,852		$	76,255
Equity income in unconsolidated joint ventures	4,898			4,146			2,890
Other income (expense), net	3,379			(1,788		)	(8,492		)
Interest expense, net	(6,131		)	(3,930		)	(4,480		)
Income before income taxes	$	132,925		$	82,280		$	66,173

Revenue and long-lived assets by geographic region

Information relating to our operations by geographic area was as follows:

	Net Sales (1)						Long-lived Assets (2)
(Dollars in thousands)	2017		2016		2015		2017		2016		2015
United States	$	225,621	$	158,136	$	164,478	$	370,964	$	326,199	$	218,439
China	272,184		236,961		227,993		57,404		62,728		65,994
Germany	89,203		79,480		76,569		114,497		101,725		110,240
Other	234,035		181,737		172,403		34,131		32,242		34,460
Total	$	821,043	$	656,314	$	641,443	$	576,996	$	522,894	$	429,133

⁽¹⁾  Net sales are allocated to countries based on the location of the customer. Countries with 10% or more of net sales have been disclosed.

⁽²⁾  Long-lived assets are based on the location of the asset and are comprised of goodwill and other intangible assets and property, plant and equipment. Countries with 10% of more of long-lived assets have been disclosed.