Leases - Schedule of Supplemental Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash Paid for Amounts Included in Measurement of Lease Liabilities
Operating Cash Flows from Operating Leases	$ 5,137
Operating Cash Flows from Finance Leases	3
Financing Cash Flows from Finance Leases	40	$ 25
Right-of-Use Assets Obtained in Exchange for Lease Liabilities
Operating Leases	149,581
Finance Leases	$ 5
Weighted-Average Remaining Lease Term (in years)
Operating Leases	8 years 2 months 12 days
Finance Leases	1 year 7 months 6 days
Weighted-Average Discount Rate
Operating Leases	4.90%
Finance Leases	3.20%