Leases - Other Information Related to Leases (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Operating
Cash paid for amounts included in the measurement of lease liabilities ($000)	$ 43,207
Lease assets obtained in exchange for lease obligations ($000)	$ 51,188
Weighted average remaining lease term (years):	4 years 8 months 12 days
Weighted average discount rate	4.40%
Finance
Cash paid for amounts included in the measurement of lease liabilities ($000)	$ 3,076
Lease assets obtained in exchange for lease obligations ($000)	$ 0
Weighted average remaining lease term (years):	2 years 6 months
Weighted average discount rate	4.70%