Basis of Presentation Restricted Cash (Tables)

3 Months Ended

Mar. 31, 2020

Restricted Cash [Abstract]

Restrictions on Cash and Cash Equivalents [Table Text Block]

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the balance sheets to the amounts shown in the statements of cash flows:

	March 31,
	2020		2019
	(in millions)
Cash and cash equivalents	$	70.3	$	89.9
Restricted cash(1)	30.6		28.6
Total cash, cash equivalents and restricted cash shown in the statements of cash flows	$	100.9	$	118.5

_______________________

⁽¹⁾ As of March 31, 2020 and 2019, the restricted cash balance is cash held in an escrow account related to a title dispute between outside parties in the Williston Basin. The restricted cash balance is recorded within "Other noncurrent assets" on the