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Commitments and Contingencies, legal accruals and unasserted claims (Details) - USD ($) $ in Millions | Dec. 31, 2015 | Dec. 31, 2014
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Loss Contingency, Estimate |  |
Accrual for legal proceedings and unasserted claims | $ 0.5 | $ 0.4

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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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