Lease Obligations - Schedule of Lease Liability (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Leases [Abstract]
2019	$ 8,124
2020	17,409
2021	17,277
2022	17,284
2023	17,419
2024 and thereafter	115,479
Total minimum lease payments	192,992
Discount	(32,973)	[1]
Lease liability	$ 160,019	[2]

[1] Represents the net present value adjustment related to minimum lease payments.

[2] Included in accrued interest payable and other liabilities in the Consolidated Statements of Financial Condition.