CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Income Statement [Abstract]
Revenues	$ 159,049	$ 176,317	$ 318,788	$ 350,588
Cost of revenues (exclusive of depreciation, amortization, and impairment charges shown below)	(130,354)	(151,249)	(260,723)	(294,480)
Selling, general and administrative expenses (exclusive of depreciation, amortization, and impairment charges shown below)	(23,224)	(28,829)	(50,474)	(58,075)
Depreciation and amortization	(6,954)	(8,254)	(13,382)	(16,989)
Impairment charges		(4,598)		(4,598)
Restructuring costs	(1,005)	(4,361)	(1,460)	(4,551)
Equity in earnings (losses) of affiliates	458	(1,486)	1,727	(1,593)
Gain on extinguishment of debt				4,236
Interest expense	(4,209)	(4,295)	(8,455)	(8,147)
Other income, net	188	252	338	1,293
Loss from continuing operations before income taxes	(6,051)	(26,503)	(13,641)	(32,316)
Income tax benefit (expense)	741	2,993	(472)	2,232
Net loss from continuing operations	(5,310)	(23,510)	(14,113)	(30,084)
Net income from discontinued operations		5,356		5,372
Net loss	$ (5,310)	$ (18,154)	$ (14,113)	$ (24,712)
Earnings (loss) per share information:
Loss per share from continuing operations - basic and diluted	$ (0.26)	$ (1.19)	$ (0.71)	$ (1.53)
Earnings per share from discontinued operations - basic and diluted		0.26		0.27
Loss per share - basic and diluted	$ (0.26)	$ (0.93)	$ (0.71)	$ (1.26)
Weighted average shares outstanding - basic and dilutive	19,790	19,744	19,782	19,690