Accrued Expenses (Tables)	9 Months Ended
	Sep. 30, 2021
Accrued Expenses [Abstract]
Schedule of Accrued Expenses	As of As of September 30, 2021 December 31, 2020 (in thousands)Salaries and benefits $ 23,453 $ 20,958Real estate and property taxes 10,501 9,583Unpaid capital expenditures 7,179 6,073Other 28,840 26,417Total accrued expenses $ 69,973 $ 63,031