Segment Information - Total Assets by Business Segment (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Total assets	$ 1,108,922	$ 1,083,097
Chemical [Member]
Segment Reporting Information [Line Items]
Total assets	901,379	842,725
Climate Control [Member]
Segment Reporting Information [Line Items]
Total assets	149,506	159,960
Other [Member]
Segment Reporting Information [Line Items]
Total assets	6,058	6,832
Corporate [Member]
Segment Reporting Information [Line Items]
Total assets	$ 51,979	$ 73,580