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Fair Value Measurements (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Carrying Values | Fixed rate debt
Derivative [Line Items]
Value of debt	$ 701.4	$ 505.6
Carrying Values | Variable rate debt
Derivative [Line Items]
Value of debt	19.0	14.0
Fair Values | Fixed rate debt
Derivative [Line Items]
Value of debt	$ 702.0	$ 516.5

X

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

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+ References

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