Leases - Aggregate Future Minimum Lease Payments (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Operating Lease Liabilities, Payments Due [Abstract]
Remainder of 2019	$ 21,736
2020	34,676
2021	25,108
2022	20,831
2023	17,640
Thereafter	17,406
Total	137,397
Less: Interest	(16,801)
Present value of lease liabilities	120,596
Finance Lease Liabilities, Payments, Due [Abstract]
Remainder of 2019	14,144
2020	26,916
2021	30,292
2022	15,307
2023	12,854
Thereafter	11,156
Total	110,669
Less: Interest	(16,720)
Present value of lease liabilities	93,949
Operating and Finance Lease Liabilities, Payments Due [Abstract]
Operating and FInance Lease, Liability, Payments, Remainder of Fiscal Year	35,880
Operating and FInance Lease, Liability, Payments, Due Year Two	61,592
Operating and FInance Lease, Liability, Payments, Due Year Three	55,400
Operating and FInance Lease, Liability, Payments, Due Year Four	36,138
Operating and FInance Lease, Liability, Payments, Due Year Five	30,494
Operating and FInance Lease, Liability, Payments, Due after Year Five	28,562
Operating and FInance Lease, Liability, Payments, Due	248,066
Operating and FInance Lease, Liability, Undiscounted Excess Amount	(33,521)
Operating and FInance Lease, Liability	$ 214,545