Contingencies Contingencies (Details) (USD $)	Mar. 31, 2015
Loss Contingencies [Line Items]
Additional warranty expense accrued related to recall	$ 11,493,000
Field action under review
Loss Contingencies [Line Items]
Additional warranty expense accrued related to recall	6,559,000
Warranty related sieve bed recall
Loss Contingencies [Line Items]
Additional warranty expense accrued related to recall	2,057,000
Warranty related recall
Loss Contingencies [Line Items]
Additional warranty expense accrued related to recall	2,877,000
Europe
Loss Contingencies [Line Items]
Additional warranty expense accrued related to recall	3,395,000
North America/HME
Loss Contingencies [Line Items]
Additional warranty expense accrued related to recall	3,164,000
North America/HME | Warranty related recall
Loss Contingencies [Line Items]
Additional warranty expense accrued related to recall	1,612,000
Asia/Pacific | Warranty related recall
Loss Contingencies [Line Items]
Additional warranty expense accrued related to recall	$ 1,265,000