Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of future minimum lease payments for capital and operating leases

Future minimum lease payments under non-cancelable capital and operating leases (with initial or remaining lease terms in excess of one year) as of December 31 are as follows:

	Capital		Operating	Total Future Payments
2019	$	1,494	116,110	117,604
2020	1,195		93,724	94,919
2021	766		66,129	66,895
2022	562		42,247	42,809
2023	555		22,207	22,762
Thereafter	3,215		26,097	29,312
Total payments	7,787		366,514	374,301
Less amount representing interest	1,123
Present value of capitalized lease payments	$	6,664