Leases - Summary of Right-of-Use Asset and Net Lease Liability (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Leases [Abstract]
Right-of-use asset	$ 31,975
Operating lease, right-of-use asset, statement of financial position [extensible list]	us-gaap:OtherAssetsMember
Net lease liability	$ 33,263
Operating lease, liability, statement of financial position [extensible list]	us-gaap:OtherLiabilitiesMember