Indebtedness (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Schedule of Long-Term Debt Instruments

At December 31, 2019 and 2018, our outstanding indebtedness consisted of the following:

	December 31,
	2019			2018
Revolving credit facility, due in 2023	$	—		$	175,000
Unsecured term loan, due in 2020	—			300,000
Unsecured term loan, due in 2022	—			88,000
Senior unsecured notes, 3.750% interest rate, due in 2019	—			350,000
Senior unsecured notes, 3.600% interest rate, due in 2020 (1)(2)	400,000			400,000
Senior unsecured notes, 4.000% interest rate, due in 2022	300,000			300,000
Senior unsecured notes, 4.150% interest rate, due in 2022 (1)	300,000			300,000
Senior unsecured notes, 4.250% interest rate, due in 2024 (1)	350,000			350,000
Senior unsecured notes, 4.500% interest rate, due in 2025 (1)	400,000			400,000
Senior unsecured notes, 5.875% interest rate, due in 2046	310,000			310,000
Mortgage note payable, 7.000% interest rate, due in 2019	—			7,939
Mortgage note payable, 5.720% interest rate, due in 2020	32,888			33,703
Mortgage note payable, 4.160% interest rate, due in 2020 (1)	40,062			40,772
Mortgage note payable, 8.150% interest rate, due in 2021	1,683			2,912
Mortgage note payable, 5.877% interest rate, due in 2021 (3)	13,166			13,437
Mortgage note payable, 4.220% interest rate, due in 2022	26,522			27,210
Mortgage note payable, 3.550% interest rate, due in 2023 (1)	71,000			71,000
Mortgage note payable, 3.700% interest rate, due in 2023 (1)	50,000			50,000
Mortgage note payable, 4.800% interest rate, due in 2023	24,108			24,509
Mortgage note payable, 4.050% interest rate, due in 2030	66,780			66,780
	2,386,209			3,311,262
Unamortized debt premiums, discounts and issuance costs	(45,756		)	(56,372		)
	$	2,340,453		$	3,254,890

(1) We assumed these senior unsecured notes and mortgage notes in connection with the SIR Merger.

(2) In January 2020, we redeemed, at par plus accrued interest, all $400,000 of our 3.60% senior unsecured notes due 2020 using cash on hand, proceeds from property sales and borrowings under our revolving credit facility. 

(3) The carrying value of this mortgage note of $13,128 is net of unamortized issuance costs of $38 and is included in liabilities of properties held for sale in our consolidated balance sheet as of December 31, 2019.

Schedule of Required Principal Payments

The required principal payments due during the next five years and thereafter under all our outstanding consolidated debt as of December 31, 2019 are as follows:

Year	Principal Payment
2020	$	475,707
2021	14,420
2022	625,518
2023	143,784
2024	350,000
Thereafter	776,780
	$	2,386,209	(1)

(1)

Total consolidated debt outstanding as of December 31, 2019, net of unamortized premiums, discounts and issuance costs totaling $45,756, was $2,340,453.