Restricted Cash and Investments (Tables)

6 Months Ended

Jun. 30, 2023

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
	Six months ended
	June 30, 2023		June 30, 2022
	(dollars in thousands)
Cash and cash equivalents	$	459,368	$	476,792
Bond purchase fund	—		30,975
Restricted cash included in restricted cash and short-term investments	5,600		84,600
Total cash, cash equivalents and restricted cash reported in the consolidated statements of cash flows	$	464,968	$	592,367