Current Liabilities - Warranty Schedule (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Product Liability Contingency [Line Items]
Additional warranty expense related to recall	$ 11,493	$ 7,264
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balance as of January 1	27,393	21,451
Warranties provided during the period	21,472	10,831
Settlements made during the period	(22,752)us-gaap_ProductWarrantyAccrualPayments	(13,452)us-gaap_ProductWarrantyAccrualPayments
Changes in liability for pre-existing warranties during the period, including expirations	4,625	8,563
Balance as of December 31	30,738	27,393
Europe
Product Liability Contingency [Line Items]
Additional warranty expense related to recall	3,395
North America/HME
Product Liability Contingency [Line Items]
Additional warranty expense related to recall	3,164	2,625
Asia/Pacific
Product Liability Contingency [Line Items]
Additional warranty expense related to recall		4,639
Field Action Under Review
Product Liability Contingency [Line Items]
Additional warranty expense related to recall	6,559
Warranty Related Sieve Bed Recall
Product Liability Contingency [Line Items]
Additional warranty expense related to recall	2,057
Warranty Related Recall
Product Liability Contingency [Line Items]
Additional warranty expense related to recall	2,877
Warranty Related Recall \| North America/HME
Product Liability Contingency [Line Items]
Additional warranty expense related to recall	1,612
Warranty Related Recall \| Asia/Pacific
Product Liability Contingency [Line Items]
Additional warranty expense related to recall	$ 1,265

Amount of loss contingency liability.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties.

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Represents the aggregate Increase or Decrease in the liability during the reporting period for accruals related to preexisting standard and extended product warranties (including adjustments for changes in estimates).

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Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period.

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