Leases (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases, Operating [Abstract]
Operating Lease, Payments	$ 13,110	$ 25,911
Operating Lease, Weighted Average Remaining Lease Term	6 years 3 days	6 years 3 days
Operating Lease, Weighted Average Discount Rate, Percent	381.00%	381.00%
Operating Lease, Cost	$ 13,002	$ 25,090
Operating Lease, Right-of-Use Asset	184,027	184,027	$ 178,304	$ 0
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	21,562	21,562		48,292
Lessee, Operating Lease, Liability, Payments, Due Year Two	47,570	47,570		43,517
Lessee, Operating Lease, Liability, Payments, Due Year Three	40,313	40,313		34,836
Lessee, Operating Lease, Liability, Payments, Due Year Four	33,147	33,147		27,035
Lessee, Operating Lease, Liability, Payments, Due Year Five	26,965	26,965		19,981
Finance Lease, Liability, Payments, Due after Year Five	66,843	66,843		36,349
Lessee, Operating Lease, Liability, Payments, Due	236,400	236,400
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	26,975	26,975
Operating Lease, Liability	209,425	209,425		210,010
Operating Lease, Liability, Current	39,870	39,870
Operating Lease, Liability, Noncurrent	169,555	169,555	$ 161,464	$ 0
Variable Lease, Cost	791	1,504
Lease, Cost	13,793	26,594
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 4,284	$ 6,723