Leases - Other Information Related to Leases (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Operating
Cash paid for amounts included in the measurement of lease liabilities	$ 33,310
Lease assets obtained in exchange for lease obligations	$ 41,213
Weighted average remaining lease term (years)	4 years 9 months 18 days
Weighted average discount rate	4.40%
Finance
Cash paid for amounts included in the measurement of lease liabilities	$ 2,424
Lease assets obtained in exchange for lease obligations	$ 0
Weighted average remaining lease term (years)	2 years 7 months 6 days
Weighted average discount rate	4.90%