Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2020

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

			Additions
(in thousands)	Balance at beginning of period		Charged to costs and expenses		Charge to other accounts		(Deductions)		Balance at end of period
Year ended December 31, 2019
Valuation allowance for deferred tax assets	$	104,976	$	39,643	$	—	$	—	$	144,619
Year ended December 31, 2020
Valuation allowance for deferred tax assets	$	144,619	$	18,585	$	—	$	—	$	163,204