Leases - Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Operating leases:
Operating lease ROU assets	$ 53,933	$ 57,427
Current operating lease liabilities	11,633	12,554
Noncurrent operating lease liabilities	24,713	27,545
Total operating lease liabilities	36,346	40,099
Finance leases:
Finance lease ROU assets	2,507	3,396
Accumulated amortization	(1,671)	(1,924)
Finance lease ROU assets, net	836	1,472
Current finance lease liabilities	818	903
Non-current finance lease liabilities		138
Total finance lease liabilities	$ 818	$ 1,041
Weighted average remaining lease term (in years):
Operating leases	4 years 3 months 18 days	4 years 4 months 24 days
Finance leases	1 year	1 year 3 months 18 days
Weighted average discount rate:
Operating leases	3.80%	3.80%
Finance leases	3.00%	3.00%