Basis of presentation and summary of significant accounting policies (Tables)

6 Months Ended

Jun. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Interest and Other Income

Other income

The following is a summary of other income in the accompanying consolidated statements of income for the three and six months ended June 30, 2016 and 2015 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016		2015
Management fee income	$	81	$	257	$	334	$	811
Interest and other income	574		379		1,428		864
Investment income	9,676		2,121		13,785		5,833
Total other income	$	10,331	$	2,757	$	15,547	$	7,508