Commitments and Contingencies (Details) $ in Millions	3 Months Ended
Mar. 31, 2019 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Purchase commitment	$ 0.0

The minimum amount the entity agreed to spend under the long-term purchase commitment.

No definition available.

Name:	us-gaap_LongTermPurchaseCommitmentAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration