Note 4 - Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2016

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
Numerator:
Numerator for basic and diluted earnings per share – Net income available to common shareholders	$	14,880	$	19,883	$	28,092	$	56,240
Denominator:
Denominator for basic earnings per share – weighted average shares outstanding		39,617		40,361		40,138		40,235
Effect of dilutive securities–
Employee and director stock options and restricted share awards		657		775		560		830
Denominator for diluted earnings per share – adjusted weighted average shares outstanding and assumed conversions		40,274		41,136		40,698		41,065
Basic earnings per common share	$	.38	$	.49	$	.70	$	1.40
Diluted earnings per common share and common share equivalents	$	.37	$	.48	$	.69	$	1.37

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
Anti-dilutive options – weighted average		2,287		1,328		2,444		1,139