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Fair Value Of Financial Instruments (Narrative) (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 USD ($) | Sep. 30, 2017 USD ($)
Fair Value Disclosures [Abstract] |  |
Transfers of financial assets from Level 2 to Level 1 |  | $ 1,100,000
Transfers of financial assets from Level 1 to Level 2 | $ 100,000 | 4,500,000
Transfers, Into Level 3 |  | 0
Transfers, out of Level 3, assets | $ 0 | $ 18,300,000
Stated interest rate | 4.25% | 4.25%
Maturity date |  | Dec. 31, 2024

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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