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Indemnification Provisions - Narrative (Details) - Discontinued Operations, Disposed of by Sale [Member] - Sisd [Member] - AMETEK Matter [Member] - Settled Litigation [Member] - Guarantee Obligations [Member] | 12 Months Ended
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Dec. 31, 2016 USD ($)
Loss Contingencies [Line Items] |
Loss contingency, damages awarded, refund of product purchase price, value | $ 326,000
Loss contingency, damages awarded, reimbursement of legal fees, value | 45,000
Litigation settlement, expense | $ 281,000

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