Subsequent Events - Additional Information (Details) - Subsequent Event $ in Millions	May 14, 2019 USD ($)
Subsequent Event [Line Items]
Contractual obligation	$ 7.5
Contractual obligation completion month and year	2028-01
Future obligation to purchase capital equipment	$ 50.0

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration