Leases - Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash paid related to lease liabilities
Operating cash payments for operating leases	$ 14,941
Investing cash payments for operating leases	28,034
Financing cash payments for financing leases	918	$ 0	$ 0
Right of use assets obtained in exchange for lease obligations entered into during the period
Operating leases	59,740
Financing leases	$ 597