Lease Accounting Other Information (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 15,013
ROU assets obtained in exchange for new operating lease liabilities	$ 10,510
Weighted-average remaining lease term for operating leases	8 years 2 months 12 days
Weighted-average discount rate for operating leases	3.40%