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Segment Information - Segment Financial Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Segment Reporting Information [Line Items]        
Net sales $ 157,685 $ 171,046 $ 534,202 $ 551,233
Gross profit (loss) 13,279 24,386 90,520 121,977
Operating income (loss) (54,887) (1,197) (38,104) 48,428
Interest expense, net 877 5,079 6,505 17,458
Non-operating income, net (23) (89) (107) (242)
Provision (benefit) for income taxes (21,982) (2,415) (17,842) 12,286
Equity in earnings of affiliate - Climate Control       (79)
Income (loss) from continuing operations (33,759) (3,772) (26,660) 19,005
Corporate [Member]        
Segment Reporting Information [Line Items]        
Operating income (loss) (7,173) (4,459) (22,782) (17,081)
Chemical [Member]        
Segment Reporting Information [Line Items]        
Net sales 80,623 94,767 320,205 345,744
Gross profit (loss) (10,456) (521) 25,001 57,161
Non-operating income, net (16) (73) (77) (213)
Chemical [Member] | Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Operating income (loss) (55,046) (5,587) (31,546) 46,815
Climate Control [Member]        
Segment Reporting Information [Line Items]        
Net sales 75,050 73,485 207,090 196,585
Gross profit (loss) 22,978 23,862 63,021 61,628
Non-operating income, net     (4)  
Equity in earnings of affiliate - Climate Control       (79)
Climate Control [Member] | Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Operating income (loss) 7,163 8,452 15,479 17,396
Other [Member]        
Segment Reporting Information [Line Items]        
Net sales 2,012 2,794 6,907 8,904
Gross profit (loss) 757 1,045 2,498 3,188
Other [Member] | Operating Segments [Member]        
Segment Reporting Information [Line Items]        
Operating income (loss) 169 397 745 1,298
Corporate and Other [Member]        
Segment Reporting Information [Line Items]        
Non-operating income, net $ (7) $ (16) $ (26) $ (29)