Notes and Contracts Payable (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Schedule of Notes and Contracts Payable

	December 31,
	2018			2017
	(in thousands, except percentages)
4.60% senior unsecured notes due November 15, 2024, effective interest rate of 4.60%	$	300,000		$	300,000
4.30% senior unsecured notes due February 1, 2023, effective interest rate of 4.35%		250,000			250,000
Line of credit borrowings due May 14, 2019, weighted-average interest rate of 4.15% and 3.32% at December 31, 2018 and 2017, respectively		160,000			160,000
Trust deed notes with maturities through 2023, collateralized by land and buildings with net book values of $39,283 and $46,478 at December 31, 2018 and 2017, respectively, weighted-average interest rate of 5.26% and 5.27%, at December 31, 2018 and 2017, respectively		19,247			22,725
Other notes and contracts payable with maturities through 2032, weighted-average interest rate of 4.49% and 4.70% at December 31, 2018 and 2017, respectively		5,791			3,707
		735,038			736,432
Unamortized discount – senior unsecured notes		(462	)		(560	)
Debt issuance costs – senior unsecured notes		(2,557	)		(3,062	)
	$	732,019		$	732,810

Aggregate Annual Maturities of Notes and Contracts Payable

The aggregate annual maturities for notes and contracts payable for the next five years and thereafter, are as follows:

Year	Annual maturities
	(in thousands)
2019	$	165,384
2020		5,066
2021		4,965
2022		5,104
2023		254,403
Thereafter		300,116
	$	735,038