Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENT (Details)

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SUBSEQUENT EVENT (Details) - Subsequent Event
$ in Millions
Jul. 11, 2018
USD ($)
Electrical Solutions | Discontinued operations, held-for-sale | Koontz-Wagner  
Bankruptcy  
Negotiated settlement for lease agreement $ 1.8
Number of days salary continuance provided (in days) 60 days
Liability for salaries of effected employees $ 2.4
Electrical Solutions | Discontinued operations, held-for-sale | Koontz-Wagner | Multi-employer Pension Plan  
Bankruptcy  
Estimated pension withdrawal liability $ 4.3
Duration of pension withdrawal liability payable (in years) 20 years
Estimated pension payments expected to be paid each year $ 0.3
Centre Lane Facility Fifth Amendment Member  
Bankruptcy  
Amendment fee $ 4.0