COST OF REVENUE

Cost of revenue principally includes payroll and employee benefits associated with personnel employed in customer service and operations roles, fees paid to external providers related to the provision of services, reimbursable expenses, technology and telecommunications costs as well as depreciation and amortization of operating assets. The components of cost of revenue were as follows:



	Three months ended June 30,				Six months ended June 30,
(in thousands)	2016		2015		2016		2015

Compensation and benefits	$	69,773	$	64,890	$	134,836	$	134,216
Outside fees and services	73,326		54,822		145,129		108,069
Reimbursable expenses	13,783		30,830		29,237		62,786
Technology and telecommunications	10,703		10,355		20,643		22,248
Depreciation and amortization	6,786		7,262		13,389		13,666

Total	$	174,371	$	168,159	$	343,234	$	340,985