Indebtedness (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Schedule of Outstanding Indebtedness

At December 31, 2018 and 2017, our outstanding indebtedness included the following (in thousands):

				December 31,
	Interest Rate at December 31, 2018		Maturity Date	2018			2017
Unsecured revolving credit facility, at LIBOR plus a premium	—	%	—	$	—		$	—
5-year unsecured term loan, at LIBOR plus a premium	—	%	—	—			200,000
7-year unsecured term loan, at LIBOR plus a premium	—	%	—	—			200,000
Unsecured floating rate debt	—	%		$	—		$	400,000
5.875% Senior Unsecured Notes due 2020	5.875	%	9/15/2020	$	250,000		$	250,000
5.75% Senior Unsecured Notes due 2042	—	%	—	—			175,000
Unsecured fixed rate debt	5.875	%		$	250,000		$	425,000
206 East 9th Street	5.69	%	1/5/2021	$	26,000		$	26,536
97 Newberry Road	—	%	—	—			5,404
Secured fixed rate debt	5.69	%		$	26,000		$	31,940
				$	276,000		$	856,940
Unamortized net premiums, discounts and deferred financing fees				(1,045		)	(8,362		)
				$	274,955		$	848,578

Schedule of Required Principal Payments on Outstanding Debt

The required principal payments due during the next five years and thereafter under all of our outstanding debt at December 31, 2018 are as follows (in thousands):

2019	$	567
2020	250,597
2021	24,836
2022	—
2023	—
Thereafter	—
	$	276,000