Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2016

Supplemental Cash Flow Elements [Abstract]

Components of supplemental cash flow information

Supplemental cash flow information is as follows (in thousands):

	Three months ended March 31,
	2016		2015
Supplemental non-cash investing and financing activities:
Value of common stock issued in acquisitions	$	—	$	1,014
Exercise of stock options by common stock surrender	—		66
Supplemental cash payment information:
Interest paid	$	382	$	309
Income taxes paid, net of refunds	2,264		1,911