Fixed Assets (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Fixed Assets

As of December 31, 2017 and 2016, fixed assets consisted of the following:

	As of December 31,
	2017			2016
	(dollars in thousands)
Telephone and computer equipment	$	3,465		$	2,787
Computer software	2,914			2,167
Furniture and fixtures	1,423			1,204
Leasehold improvements	36,702			35,092
Assets acquired under capital leases—equipment	6,920			4,075
Aircraft and related equipment	17,369			20,893
Other	58			57
	68,851			66,275
Less: Accumulated depreciation and amortization	(28,355		)	(23,867		)
	$	40,496		$	42,408