Balance Sheet Components



	September 30, 2018 (unaudited)			December 31, 2017
	(in thousands)
Accounts receivable:
Accounts receivable	$	66,541		$	82,603
Unbilled revenues	44,038			30,863
Allowance for doubtful accounts	(815		)	(1,272		)
Total	$	109,764		$	112,194



Property and equipment:
Computer hardware (useful life of 3 years)	$	13,832		$	13,110
Software (useful life of 1 to 7 years)	5,042			5,159
Furniture and fixtures (useful life of 5 years)	4,472			3,772
Leasehold improvements (useful life of 5 years)	3,172			2,836
Less: Accumulated depreciation	(19,953		)	(17,732		)
Total	$	6,565		$	7,145



Other current liabilities:
Estimated fair value of contingent consideration liability (1)	$	15,356	$	8,148
Accrued variable compensation	12,810		16,842
Deferred revenue	4,733		3,278
Other current liabilities	4,452		3,879
Payroll related costs	3,378		2,971
Accrued medical claims expense	2,072		2,133
Professional fees	1,106		357
Accrued subcontractor fees	265		469
Total	$	44,172	$	38,077



Other non-current liabilities:
Deferred income taxes	$	7,638	$	7,360
Other non-current liabilities	7,742		4,667
Deferred compensation liability	4,874		4,409
Total	$	20,254	$	16,436

(1)

As of September 30, 2018, represents the fair value estimate of revenue and earnings-based contingent consideration that may be realized by Stone Temple, Southport and Clarity twelve months after the acquisition. As of December 31, 2017, represents the fair value estimate of additional revenue and earnings-based contingent consideration that may be realized by Clarity twelve months after the acquisition.