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Fair Value of Financial Instruments
12 Months Ended
Dec. 31, 2017
Fair Value Disclosures [Abstract]  
Fair Value of Financial Instruments
Fair Value of Financial Instruments
The following methods and assumptions were used to estimate the fair value of each class of financial instrument for which it is practical to estimate that value.

Cash, cash equivalents and restricted cash - The carrying amount approximates fair value.

Mortgage notes receivable - The fair value of mortgage notes receivable is estimated based either on cash flow analyses at an assumed market rate of interest or at a rate consistent with the rates on mortgage notes acquired by the Company recently, if any.

Borrowings under the Unsecured Credit Facility due 2020 and Unsecured Term Loan due 2022 - The carrying amount approximates fair value because the borrowings are based on variable market interest rates.

Senior unsecured notes payable - The fair value of notes and bonds payable is estimated using cash flow analyses, based on the Company’s current interest rates for similar types of borrowing arrangements.

Mortgage notes payable - The fair value is estimated using cash flow analyses, based on the Company’s current interest rates for similar types of borrowing arrangements.

Interest rate swap agreements - Interest rate swap agreements are recorded in other liabilities on the Company's Consolidated Balance Sheets at fair value. Fair value is estimated by utilizing pricing models that consider forward yield curves and discount rates.
The table below details the fair value and carrying values for notes and bonds payable as of December 31, 2017 and 2016. 
 
December 31, 2017
 
December 31, 2016
(Dollars in millions)
Carrying
Value

 
Fair
Value

 
Carrying
Value

 
Fair
Value

Notes and bonds payable (1)
$
1,283.9

 
$
1,269.7

 
$
1,264.4

 
$
1,265.1


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(1) Level 2 – model-derived valuations in which significant inputs and significant value drivers are observable in active markets.