Warrany Costs (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Product Liability Contingency [Line Items]
Additional warranty expense accrued related to recall	$ 11,493
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balance as of January 1, 2014	27,393
Warranties provided during the period	17,763
Settlements made during the period	(17,051)
Changes in liability for pre-existing warranties during the period, including expirations	4,359
Balance as of September 30, 2014	32,464
Europe
Product Liability Contingency [Line Items]
Additional warranty expense accrued related to recall	3,395
North America/HME
Product Liability Contingency [Line Items]
Additional warranty expense accrued related to recall	3,164
Field action under review
Product Liability Contingency [Line Items]
Additional warranty expense accrued related to recall	6,559
Number of reported incidents	5
Warranty related sieve bed recall
Product Liability Contingency [Line Items]
Additional warranty expense accrued related to recall	2,057
Warranty related recall
Product Liability Contingency [Line Items]
Additional warranty expense accrued related to recall	2,877
Warranty related recall | North America/HME
Product Liability Contingency [Line Items]
Additional warranty expense accrued related to recall	1,612
Warranty related recall | Asia/Pacific
Product Liability Contingency [Line Items]
Additional warranty expense accrued related to recall	$ 1,265