Leases Balance Sheet and Supplemental Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Leases [Abstract]
Operating lease right-of-use assets (Other assets on Consolidated Balance Sheets)	$ 18,398
Operating lease liabilities (Accrued expenses and other liabilities on Consolidated Balance Sheets)	18,884
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 467
Weighted average remaining lease term	3 years 6 months
Weighted average discount rate	4.80%