Commitments and Contingent Liabilities (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Aggregate future minimum lease payments for operating and capital leases [Table Text Block]

The aggregate future minimum lease payments for operating and capital leases as of December 31, 2018 are as follows:

	Operating		Capital
2019	$	49,009	$	1,802
2020	38,620		1,748
2021	29,396		1,687
2022	21,767		1,392
2023	13,994		4,754
Thereafter	42,087		—
Total	$	194,873	$	11,383