Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2016

Supplemental Cash Flow Elements [Abstract]

Schedule of cash flow, supplemental disclosures

SUPPLEMENTAL CASH FLOW INFORMATION

	Year Ended December 31,
	2016		2015		2014
Cash paid during the year for:	(In Thousands)
Income taxes, net of refunds	$	8,791	$	707	$	60
Interest	9		—		1
Non-cash financing activity:
Conversion of preferred stock	—		—		111
Issuance of treasury stock	1,741		666		—