Restricted Cash and Investments (Tables)

9 Months Ended

Sep. 30, 2021

Restricted Investments Note [Abstract]

Reconciliation of cash, cash equivalents and restricted cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the unaudited consolidated balance sheets that sum to the total of the same such amounts reported in the unaudited consolidated statements of cash flows.

Classification
	Nine months ended
	September 30, 2021		September 30, 2020
	(dollars in thousands)
Cash and cash equivalents	$	452,943	$	383,868
Restricted cash included in Prepayments and other current assets	3,400		—
Total cash, cash equivalents and restricted cash reported in the consolidated statements of cash flows	$	456,343	$	383,868