Notes Payable (Tables)

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Components of Notes Payable

Notes payable consists of the following:

(in thousands)	December 31,
	2020			2019
Unsecured revolving lines of credit	$	122,771		$	193,459
3.68% Series B senior notes due in 2021		40,000			40,000
3.84% Series C senior notes due in 2022		60,000			60,000
		222,771			293,459
Unamortized debt issuance cost		(17	)		(28	)
	$	222,754		$	293,431

Schedule of Future Minimum Payments under Unsecured Revolving Lines of Credit and 4.03% Senior Notes, 3.68% Senior Notes and 3.84% Senior Notes

As of December 31, 2020, the future minimum payments under the unsecured revolving lines of credit, 3.68% Series B senior notes due in 2021 and 3.84% Series C senior notes due in 2022 are as follows:

(in thousands)
Year Ended December 31,
2021	$	40,000
2022		60,000
2023		—
2024		—
2025		122,771
	$	222,771

Schedule of Information Related to Lines of Credit

The following information relates to the lines of credit for each of the following periods:

(dollar amounts in thousands)	Year Ended December 31,
	2020			2019
Maximum amount outstanding	$	199,471		$	219,635
Average amount outstanding	$	170,075		$	201,195
Weighted average interest rate, during the period		2.11	%		3.59	%
Prime interest rate, end of period		3.25	%		4.75	%