Annual report pursuant to Section 13 and 15(d)

Segments - Summary of Segment Reporting Information (Detail)

v3.7.0.1
Segments - Summary of Segment Reporting Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2016
Oct. 01, 2016
Jul. 02, 2016
Apr. 02, 2016
Dec. 31, 2015
Oct. 03, 2015
Jul. 04, 2015
Apr. 04, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Segment Reporting Information                      
Sales $ 154,068 $ 155,099 $ 164,426 $ 159,530 $ 157,340 $ 200,145 $ 173,156 $ 161,638 $ 633,123 $ 692,279 $ 661,039
Total Operating Profit                 73,139 98,801 87,362
Deductions from Operating Profit:                      
Interest Expense, Net of Interest Income                 (4,354) (4,751) (8,255)
Income Before Income Taxes                 68,785 94,050 79,107
Total Depreciation and Amortization                 25,790 25,309 27,254
Total Assets 604,344       609,243       604,344 609,243 562,910
Total Capital Expenditures                 13,037 18,641 40,882
Aerospace Segment                      
Segment Reporting Information                      
Sales                 534,041 549,738 494,747
Test Systems Segment                      
Segment Reporting Information                      
Sales                 99,082 142,541 166,292
Operating Segments                      
Segment Reporting Information                      
Total Operating Profit                 $ 86,473 $ 110,632 $ 92,154
Operating Margins                 13.70% 16.00% 13.90%
Operating Segments | Aerospace Segment                      
Segment Reporting Information                      
Sales                 $ 534,408 $ 549,738 $ 494,747
Total Operating Profit                 $ 77,966 $ 85,103 $ 79,753
Operating Margins                 14.60% 15.50% 16.10%
Deductions from Operating Profit:                      
Total Depreciation and Amortization                 $ 19,873 $ 19,377 $ 17,847
Total Assets 500,892       510,884       500,892 510,884 468,481
Total Capital Expenditures                 9,511 16,503 35,650
Operating Segments | Test Systems Segment                      
Segment Reporting Information                      
Sales                 99,082 142,596 166,769
Total Operating Profit                 $ 8,507 $ 25,529 $ 12,401
Operating Margins                 8.60% 17.90% 7.40%
Deductions from Operating Profit:                      
Total Depreciation and Amortization                 $ 5,273 $ 5,209 $ 8,786
Total Assets 76,575       64,934       76,575 64,934 69,247
Total Capital Expenditures                 3,345 2,103 3,472
Intersegment Eliminations | Aerospace Segment                      
Segment Reporting Information                      
Sales                 (367) 0 0
Intersegment Eliminations | Test Systems Segment                      
Segment Reporting Information                      
Sales                 0 (55) (477)
Corporate                      
Deductions from Operating Profit:                      
Corporate and Other Expenses, Net                 (13,334) (11,831) (4,792)
Total Depreciation and Amortization                 644 723 621
Total Assets $ 26,877       $ 33,425       26,877 33,425 25,182
Total Capital Expenditures                 $ 181 $ 35 $ 1,760