Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows - operating leases	$ 17,861	$ 14,868
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$ 24,201	$ 7,631