RESTRUCTURING (Tables)

12 Months Ended

Dec. 31, 2016

Restructuring and Related Activities [Abstract]

Summary of incurred and expected restructuring charges

The following table summarizes the incurred charges associated with these restructuring activities:

	Year ended December 31,
	2016			2015		2014
Fort Worth facility closure	$	—		$	—	$	287
Savannah machining operations relocation	—			—		47
St. Charles machine parts operations relocation	—			150		228
Coweta machining facility closure	—			94		—
Greenville office closure	(26		)	449		—
Australia office closure	—			47		—
Wichita sheet metal fabrication operations relocation	265			—		—
Other employment separation activities	973			1,582		2,023
Total	$	1,212		$	2,322	$	2,585
Expense incurred by segment:
Aerostructures	$	1,218		$	1,108	$	2,074
Engineering Services	(6		)	1,214		511
Total	$	1,212		$	2,322	$	2,585

Summary of restructuring activity

	Employee
	Severance			Other			Total
Accrued restructuring balance as of December 31, 2014	$	739		$	—		$	739
Accrual additions	2,194			128			2,322
Cash payments	(2,771		)	(35		)	(2,806		)
Accrued restructuring balance as of December 31, 2015	$	162		$	93		$	255
Accrual additions	1,238			(26		)	1,212
Cash payments	(1,115		)	(67		)	(1,182		)
Accrued restructuring balance as of December 31, 2016	$	285		$	—		$	285