CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS (Details) - USD ($) $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2015		Sep. 30, 2015	[2]	Jun. 30, 2015	[3]	Mar. 31, 2015		Dec. 31, 2014		Sep. 30, 2014	[6]	Jun. 30, 2014	[7]	Mar. 31, 2014		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Cash Flow Statements, Captions [Line Items]
Net loss	$ (1,188)	[1]	$ 34		$ 378		$ (1,465)	[4]	$ (22,505)	[5]	$ 1,396		$ (7,411)		$ (442)	[8]	$ (2,241)	$ (28,962)	$ (58,485)
Adjustments for non-cash items																	23,155	59,351	85,495
Net changes in operating assets and liabilities, net of acquired businesses																	11,448	18,728	(35,359)
Intercompany activity																	0	0	0
Net cash provided/(used) by operating activities																	32,362	49,117	(8,349)
Additions to property, plant and equipment																	(16,599)	(16,690)	(23,738)
Acquisitions, net of cash acquired																	0	0	(504)
Proceeds from sale of equipment																	285	3,579	1,989
Net cash used by investing activities																	(16,314)	(13,111)	(22,253)
Proceeds from issuance of debt																	0	250,000	5,751
Principal payments on long-term debt and notes payable																	(13,276)	(235,633)	(5,863)
Advances on revolving line of credit																	99,000	66,000	107,000
Payments on revolving line of credit																	(99,000)	(102,000)	(77,236)
Payments for debt issuance cost																	(195)	(8,018)	(1,817)
Other, net																	0	0	(8)
Net cash (used)/provided by financing activities																	(13,471)	(29,651)	27,827
Net increase/(decrease) in cash and cash equivalents																	2,577	6,355	(2,775)
Cash and cash equivalents, beginning of year							7,927								1,572		7,927	1,572	4,347
Cash and cash equivalents, end of year	10,504								7,927								10,504	7,927	1,572
LMIA(Guarantor Parent)
Condensed Cash Flow Statements, Captions [Line Items]
Net loss																	(2,282)	(29,060)	(58,508)
Adjustments for non-cash items																	(14,546)	21,714	46,788
Net changes in operating assets and liabilities, net of acquired businesses																	10,420	19,977	696
Intercompany activity																	22,874	17,663	(12,974)
Net cash provided/(used) by operating activities																	16,466	30,294	(23,998)
Additions to property, plant and equipment																	(1,903)	(715)	(4,623)
Acquisitions, net of cash acquired																			(504)
Proceeds from sale of equipment																	0	2,558	0
Net cash used by investing activities																	(1,903)	1,843	(5,127)
Proceeds from issuance of debt																		250,000	3,551
Principal payments on long-term debt and notes payable																	(11,160)	(231,466)	(5,767)
Advances on revolving line of credit																	99,000	66,000	107,000
Payments on revolving line of credit																	(99,000)	(102,000)	(77,236)
Payments for debt issuance cost																	(210)	(8,018)	(1,780)
Other, net																		0	(8)
Net cash (used)/provided by financing activities																	(11,370)	(25,484)	25,760
Net increase/(decrease) in cash and cash equivalents																	3,193	6,653	(3,365)
Cash and cash equivalents, beginning of year							7,058								405		7,058	405	3,770
Cash and cash equivalents, end of year	10,251								7,058								10,251	7,058	405
Guarantor Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Net loss																	19,326	(8,761)	(52,255)
Adjustments for non-cash items																	18,416	46,496	90,985
Net changes in operating assets and liabilities, net of acquired businesses																	1,028	(1,249)	(36,055)
Intercompany activity																	(22,874)	(17,663)	12,974
Net cash provided/(used) by operating activities																	15,896	18,823	15,649
Additions to property, plant and equipment																	(14,696)	(15,975)	(19,115)
Acquisitions, net of cash acquired																			0
Proceeds from sale of equipment																	285	1,021	1,989
Net cash used by investing activities																	(14,411)	(14,954)	(17,126)
Proceeds from issuance of debt																		0	2,200
Principal payments on long-term debt and notes payable																	(2,116)	(4,167)	(96)
Advances on revolving line of credit																	0	0	0
Payments on revolving line of credit																	0	0	0
Payments for debt issuance cost																	15	0	(37)
Other, net																		0	0
Net cash (used)/provided by financing activities																	(2,101)	(4,167)	2,067
Net increase/(decrease) in cash and cash equivalents																	(616)	(298)	590
Cash and cash equivalents, beginning of year							869								1,167		869	1,167	577
Cash and cash equivalents, end of year	253								869								253	869	1,167
Consolidating/Eliminating Entries
Condensed Cash Flow Statements, Captions [Line Items]
Net loss																	(19,285)	8,859	52,278
Adjustments for non-cash items																	19,285	(8,859)	(52,278)
Net changes in operating assets and liabilities, net of acquired businesses																	0	0	0
Intercompany activity																	0	0	0
Net cash provided/(used) by operating activities																	0	0	0
Additions to property, plant and equipment																	0	0	0
Acquisitions, net of cash acquired																			0
Proceeds from sale of equipment																	0	0	0
Net cash used by investing activities																	0	0	0
Proceeds from issuance of debt																		0	0
Principal payments on long-term debt and notes payable																	0	0	0
Advances on revolving line of credit																	0	0	0
Payments on revolving line of credit																	0	0	0
Payments for debt issuance cost																	0	0	0
Other, net																		0	0
Net cash (used)/provided by financing activities																	0	0	0
Net increase/(decrease) in cash and cash equivalents																	0	0	0
Cash and cash equivalents, beginning of year							$ 0								$ 0		0	0	0
Cash and cash equivalents, end of year	$ 0								$ 0								$ 0	$ 0	$ 0

[1] Gross profit in the fourth quarter of 2015 includes an unfavorable forward loss reserve adjustment of $1,010 related to a long-term contract. Net loss for the fourth quarter of 2015 includes a restructuring benefit of $46.

[2] Gross profit in the third quarter of 2015 includes an unfavorable adjustment of $1,738 related to a long-term contract for which a forward loss reserve was established. Net income for the the third quarter of 2015 included a net gain of $3,325 related to a legal settlement and $1,575 of restructuring expenses.

[3] Included in the net loss for the the second quarter of 2015 were $518 of restructuring expenses.

[4] Included in the net loss for the the first quarter of 2015 were $275 of restructuring expenses.

[5] Net loss in the fourth quarter of 2014 includes a $26,439 goodwill impairment charge related to the Engineering Services reporting unit, $297 of restructuring expenses and a $6,396 income tax benefit resulting from the decision to carry the 2014 tax loss back to previous years.

[6] Gross profit in the third quarter of 2014 includes a $5,286 favorable cumulative catch-up adjustment related to the settlement of an unpriced change order and the Company's ability to secure more favorable future material pricing on a long-term production contract. In addition, net income in the third quarter of 2014 includes $765 of restructuring expenses.

[7] Net loss in the second quarter of 2014 includes $793 of interest expense related to the termination of interest rate derivatives and $8,340 related to the write-off of debt issuance costs associated with the modification of the Company's revolving credit facility and the termination of its long-term credit agreement. Net loss in the second quarter of 2014 also includes $1,095 of restructuring expenses.

[8] Included in the net loss for the the first quarter of 2014 were $428 of restructuring expenses.