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Borrowings and Lines of Credit Borrowings and lines of Credit (Current Year Actions) (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Debt Instrument [Line Items] |  |  |  |
Average Years of Maturity of Long Term Debt |  |  | twelve years |
Average interest expense rate | 3.60% | 4.00% | 3.60% | 4.10%

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Average Years of Maturity of Long Term Debt + References No definition available. + Details
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- Definition Annualized average interest expense rate on short-term and long-term debt + References No definition available. + Details
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