Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	$ 28		$ 28
Restructuring activities, total expense to be incurred	5,435		5,435
Restructuring and Related Cost, Cost Incurred to Date	5,407		5,407
Other Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0		0
Restructuring activities, total expense to be incurred	115		115
Restructuring and Related Cost, Cost Incurred to Date	115		115
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	1,165	$ 253	2,175	$ 1,441
Employee Severance [Member] | Precise Machine [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0		0
Restructuring activities, total expense to be incurred	615		615
Restructuring and Related Cost, Cost Incurred to Date	615		615
Employee Severance [Member] | Relocation of Machining Operations from Savannah Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0		0
Restructuring activities, total expense to be incurred	47		47
Restructuring and Related Cost, Cost Incurred to Date	47		47
Employee Severance [Member] | Relocation of Machining Parts Operations from St. Charles Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0		0
Restructuring activities, total expense to be incurred	378		378
Restructuring and Related Cost, Cost Incurred to Date	378		378
Employee Severance [Member] | Coweta Facility Closure [Member] [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	28		28
Restructuring activities, total expense to be incurred	92		92
Restructuring and Related Cost, Cost Incurred to Date	64		64
Employee Severance [Member] | Greenville Facility Closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0		0
Restructuring activities, total expense to be incurred	376		376
Restructuring and Related Cost, Cost Incurred to Date	376		376
Employee Severance [Member] | Melbourne Australia Office Closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0		0
Restructuring activities, total expense to be incurred	34		34
Restructuring and Related Cost, Cost Incurred to Date	34		34
Employee Severance [Member] | Other Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0		0
Restructuring activities, total expense to be incurred	3,529		3,529
Restructuring and Related Cost, Cost Incurred to Date	3,529		3,529
Lease Termination [Member] | Precise Machine [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0		0
Restructuring activities, total expense to be incurred	124		124
Restructuring and Related Cost, Cost Incurred to Date	124		124
Lease Termination [Member] | Greenville Facility Closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0		0
Restructuring activities, total expense to be incurred	125		125
Restructuring and Related Cost, Cost Incurred to Date	125		125
Selling, General and Administrative Expenses [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related expenses	1,575	765	2,368	2,288
Selling, General and Administrative Expenses [Member] | Employee Severance [Member] | Precise Machine [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related expenses	0	(18)	0	287
Selling, General and Administrative Expenses [Member] | Employee Severance [Member] | Relocation of Machining Operations from Savannah Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related expenses	0	0	0	47
Selling, General and Administrative Expenses [Member] | Employee Severance [Member] | Relocation of Machining Parts Operations from St. Charles Facility [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related expenses	0	0	378	0
Selling, General and Administrative Expenses [Member] | Employee Severance [Member] | Coweta Facility Closure [Member] [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related expenses	64	0	64	0
Selling, General and Administrative Expenses [Member] | Employee Severance [Member] | Greenville Facility Closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related expenses	501	0	501	0
Selling, General and Administrative Expenses [Member] | Employee Severance [Member] | Melbourne Australia Office Closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related expenses	34	0	34	0
Selling, General and Administrative Expenses [Member] | Employee Severance [Member] | Other Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related expenses	$ 976	$ 783	$ 1,391	$ 1,954