Annual report pursuant to Section 13 and 15(d)

Segments - Summarizes the Company's Sales and Long-Lived Assets by Geographic Regions (Details)

v3.20.4
Segments - Summarizes the Company's Sales and Long-Lived Assets by Geographic Regions (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 26, 2020
Jun. 27, 2020
Mar. 28, 2020
Dec. 31, 2019
Sep. 28, 2019
Jun. 29, 2019
Mar. 30, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets                      
Sales $ 114,803 $ 106,506 $ 123,694 $ 157,584 $ 198,412 $ 177,018 $ 189,098 $ 208,174 $ 502,587 $ 772,702 $ 803,256
Property, Plant and Equipment, Net of Accumulated Depreciation 106,678       112,499       106,678 112,499  
Net (Loss) Income (19,985) $ (5,254) $ (23,579) $ (66,963) (34,065) $ 1,210 $ 6,726 $ 78,146 (115,781) 52,017 46,803
Cumulative translation adjustments (4,500)       (7,000)       (4,500) (7,000)  
United States                      
Revenues from External Customers and Long-Lived Assets                      
Sales                 377,218 583,589 575,830
Property, Plant and Equipment, Net of Accumulated Depreciation 95,281       101,169       95,281 101,169  
North America (excluding United States)                      
Revenues from External Customers and Long-Lived Assets                      
Sales                 7,656 12,585 10,834
Asia                      
Revenues from External Customers and Long-Lived Assets                      
Sales                 27,579 40,764 112,135
Europe                      
Revenues from External Customers and Long-Lived Assets                      
Sales                 85,306 130,227 98,193
South America                      
Revenues from External Customers and Long-Lived Assets                      
Sales                 1,788 862 1,973
Other                      
Revenues from External Customers and Long-Lived Assets                      
Sales                 3,040 4,675 4,291
France                      
Revenues from External Customers and Long-Lived Assets                      
Property, Plant and Equipment, Net of Accumulated Depreciation 9,109       8,740       9,109 8,740  
India                      
Revenues from External Customers and Long-Lived Assets                      
Property, Plant and Equipment, Net of Accumulated Depreciation 1,223       1,509       1,223 1,509  
Canada                      
Revenues from External Customers and Long-Lived Assets                      
Property, Plant and Equipment, Net of Accumulated Depreciation 1,065       1,081       1,065 1,081  
Non-US                      
Revenues from External Customers and Long-Lived Assets                      
Sales                 52,300 85,900 70,600
Net (Loss) Income                 (6,600) 8,600 $ 5,500
Net assets $ 63,300       $ 66,400       $ 63,300 $ 66,400