Annual report pursuant to Section 13 and 15(d)

Segment and Geographic Information Segment and Geographic Information - Summarized Financial Information (Details)

v3.19.1
Segment and Geographic Information Segment and Geographic Information - Summarized Financial Information (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Segment and geographic information                      
Assets $ 1,318,095,000       $ 1,222,923,000       $ 1,318,095,000 $ 1,222,923,000  
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property                 (700,000) 1,200,000 $ (400,000)
Asset Impairment Charges                 1,000,000 184,000 10,300,000
Restructuring charges                 8,779,000 14,843,000 5,404,000
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down                 1,660,000 (992,000) 10,671,000
Net sales (1) 355,794,000 $ 350,175,000 $ 349,233,000 $ 327,616,000 318,091,000 $ 306,576,000 $ 301,568,000 $ 273,946,000 1,382,818,000 1,200,181,000 757,338,000
Operating income (loss) 54,057,000 $ 61,616,000 $ 50,000,000 $ 35,176,000 21,646,000 $ 32,002,000 $ 31,597,000 $ 27,607,000 200,849,000 112,852,000 34,968,000
Depreciation and amortization (1)                 52,628,000 50,661,000 38,151,000
Additions to Other Assets, Amount                 146,056,000 65,004,000 25,617,000
Solid Capacitors                      
Segment and geographic information                      
Assets 794,402,000       704,851,000       794,402,000 704,851,000  
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property                   (600,000)  
Asset Impairment Charges                     2,100,000
Restructuring charges                 4,922,000 983,000 1,333,000
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down                 235,000 689,000 2,303,000
Operating income (loss)                 348,150,000 234,473,000 147,662,000
Depreciation and amortization (1)                 28,795,000 27,329,000 20,824,000
Additions to Other Assets, Amount                 80,700,000 31,249,000 12,300,000
Film and Electrolytic                      
Segment and geographic information                      
Assets 219,711,000       240,968,000       219,711,000 240,968,000  
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property                   (3,600,000)  
Asset Impairment Charges                     8,200,000
Restructuring charges                 2,717,000 5,788,000 3,738,000
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down                 (93,000) (3,356,000) 8,339,000
Operating income (loss)                 8,183,000 3,622,000 (9,028,000)
Depreciation and amortization (1)                 9,763,000 10,918,000 11,766,000
Additions to Other Assets, Amount                 16,000,000 12,651,000 7,955,000
Electro-magnetic, Sensors & Actuators [Member]                      
Segment and geographic information                      
Assets 234,419,000       254,193,000       234,419,000 254,193,000  
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property                   (1,300,000)  
Restructuring charges                 452,000 3,343,000 0
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down                 0 1,272,000 0
Operating income (loss)                 22,546,000 15,694,000 0
Depreciation and amortization (1)                 5,226,000 4,407,000 0
Additions to Other Assets, Amount                 13,400,000 8,481,000 0
Corporate                      
Segment and geographic information                      
Assets $ 69,563,000       $ 22,911,000       69,563,000 22,911,000  
Restructuring charges                 688,000 4,729,000 333,000
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down                 1,518,000 403,000 29,000
Operating income (loss)                 (178,030,000) (140,937,000) (103,666,000)
Depreciation and amortization (1)                 8,844,000 8,007,000 5,561,000
Additions to Other Assets, Amount                 $ 35,956,000 $ 12,623,000 $ 5,362,000