Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income tax provision (benefit)	$ 13	$ 2	$ 47	$ (144)
Deferred tax liabilities, net	670,000		670,000		$ 652,000
Unrecognized tax benefits	869		869		763
Unrecognized tax benefits that would impact effective tax rate	241		241		278
Unrecognized tax benefits that would not impact effective tax rate	628		628		485
Unrecognized tax benefits, income tax penalties and interest accrued	$ 233		$ 233		$ 241