Leases - Additional Information (Details) - USD ($) $ in Millions		6 Months Ended
Jan. 01, 2019	Jun. 30, 2019
Lessee Lease Description [Line Items]
Lessee, operating lease, option to extend lease term [true false]		true
ASU 2016-02 [Member]
Lessee Lease Description [Line Items]
Effect of adoption of new accounting standard	$ 5.6

Indicates (true false) whether lessee has option to extend operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

Name:	us-gaap_LesseeOperatingLeaseExistenceOfOptionToExtend
Namespace Prefix:	us-gaap_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration