Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Supplemental Disclosure of Cash Flow Information:
Interest paid, net of capitalized interest	$ 34,062	$ 33,397
Income taxes paid	39	64
Cash paid for operating leases	3,352	2,911
Supplemental Disclosure of Noncash Investing and Financing Activities:
Accrued capital expenditures	8,923	5,163
Dividend distributions declared, but not paid	69,731	64,922
Redemption of noncontrolling interest	6,776	527
ROU assets obtained in exchange for lease obligations	$ 0	$ 197,099