Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Supplemental Disclosure of Cash Flow Information:
Interest paid, net of capitalized interest	$ 44,230	$ 46,196
Income taxes paid	1,313	1,536
Cash paid for operating leases	6,340	6,487
Supplemental Disclosure of Noncash Investing and Financing Activities:
Accrued capital expenditures	8,536	5,216
Dividend distributions declared, but not paid	69,956	68,254
Issuance of OP Units in HTALP	0	2,603
Redemption of noncontrolling interest	7,872	1,312
Redemption of redeemable noncontrolling interest	0	3,441
ROU assets obtained in exchange for lease obligations	$ 0	$ 200,879