Fixed Assets (Tables)

12 Months Ended

Dec. 31, 2019

Property Plant And Equipment [Abstract]

Summary Of Fixed Assets

The following is a summary of fixed assets as of December 31, 2019 and 2018 (in thousands):

	December 31,
	2019			2018
Office equipment	$	288,975		$	251,542
Aircraft engine operating leases		206,315			214,065
Leasehold improvements		171,103			154,550
Building		58,804			55,342
		725,197			675,499
Accumulated depreciation and amortization		(343,032	)		(302,560	)
	$	382,165		$	372,939

Summary Of Minimum Future Payments

As of December 31, 2019, minimum future payments under non-cancelable leases were (in thousands):

2020	$	14,880
2021		12,240
2022		8,834
2023		6,517
2024		5,449
Thereafter		6,288
	$	54,208