Leases - Schedule of Other Information Related to Leases (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from finance leases	$ 1,621
Operating cash flows from operating leases	13,426
Financing cash flows from finance leases	1,896
Non-cash items:
New operating leases	12,621
New finance leases	$ 2,683