Leases - Summary of Operating Leases (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Lessee Lease Description [Line Items]
Operating lease right of use assets, gross	$ 168,275
Amortization of right-of-use assets	(34,310)
Total operating lease right-of-use assets	133,965
Real Estate Facilities
Lessee Lease Description [Line Items]
Operating lease right of use assets, gross	165,752
Office Equipment
Lessee Lease Description [Line Items]
Operating lease right of use assets, gross	1,631
Other
Lessee Lease Description [Line Items]
Operating lease right of use assets, gross	$ 892