Accrued Liabilities and Other (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Continuing operations:
Self-insured liability accrual	$ 14,352	$ 14,403
Accrued compensation	5,868	5,538
Accrued restructuring	5,749	4,647
Foreign deferred tax liability	1,095	1,219
Other	6,820	5,900
Total Continuing operations	33,884	31,707
Discontinued operations:
Self-insured liability accrual	5,691	5,351
Environmental remediation liabilities	4,769	4,999
Accrued income taxes	1,038	1,022
Other	1,086	1,133
Total Discontinued operations	12,584	12,505
Total other deferred items and liabilities	$ 46,468	$ 44,212