Note 18 - Other Supplemental Information

12 Months Ended

Dec. 31, 2015

Disclosure Text Block Supplement [Abstract]

Additional Financial Information Disclosure [Text Block]

18. Other supplemental information

		2015		2014		2013
Cash payments made during the period
Income taxes, net of refunds	$	35,679	$	34,904	$	29,637
Interest		8,057		9,002		10,141
Non-cash financing activities
Increases in capital lease obligations	$	1,021	$	2,581	$	1,065
Dividends declared but not paid		1,540		3,581		3,580
Other expenses
Rent expense	$	52,561	$	53,873	$	50,513