Intangibles - Intangibles Lease Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Intangibles [Abstract]
Gross intangible lease liabilities	$ 208,031	$ 194,565
Accumulated depreciation and amortization	(64,027)	(50,366)
Intangible liabilities, net	$ 144,004	$ 144,199
Weighted average remaining amortization period in years	8 years	8 years