CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) $ in Millions	Dec. 31, 2019 USD ($)
Statement Of Cash Flows [Abstract]
Long-term restricted cash included in cash, cash equivalents and restricted cash	$ 3.6

Cash and investments whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

No definition available.

Name:	us-gaap_RestrictedCashAndInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant