Leases Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Liability, Payments, Due Year Two	$ 22,182
Lessee, Operating Lease, Liability, Payments, Due Year Three	17,123
Lessee, Operating Lease, Liability, Payments, Due Year Four	13,423
Lessee, Operating Lease, Liability, Payments, Due Year Five	9,917
Lessee, Operating Lease, Liability, Payments, Due after Year Five	14,347
Lessee, Operating Lease, Liability, Payments, Due	101,830
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(8,732)
Operating Lease, Liability	$ 86,199	$ 86
Lessee, Operating Lease, Option to Extend	P10Y0M0D
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 24,838
Lessee, Operating Lease, Term of Contract	10 years
Finance Lease, Liability, Payments, Remainder of Fiscal Year	$ 51
Finance Lease, Liability, Payments, Due Year Two	69
Finance Lease, Liability, Payments, Due Year Three	69
Finance Lease, Liability, Payments, Due Year Four	69
Finance Lease, Liability, Payments, Due Year Five	69
Finance Lease, Liability, Payments, Due after Year Five	292
Finance Lease, Liability, Payments, Due	619
Finance Lease, Liability, Undiscounted Excess Amount	(84)
Finance Lease, Liability	535
Operating Leases [Member]
Lessee, Lease, Description [Line Items]
Short-term Lease Commitment, Amount	(6,899)
Finance Leases [Member]
Lessee, Lease, Description [Line Items]
Short-term Lease Commitment, Amount	$ 0