Property and Equipment, net (Details) $ in Millions	6 Months Ended
Jun. 30, 2022 USD ($)
Property Plant And Equipment [Abstract]
Net increase in PPE due to ships under construction and improvements	$ 112.5

Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

No definition available.

Name:	us-gaap_PropertyPlantAndEquipmentAdditions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration