Note 6 - Capital Stock

6 Months Ended

Jun. 30, 2015

Stockholders' Equity Note [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

6. Capital Stock 

On October 27, 2011, our Board of Directors authorized the purchase of $500 million of our common stock, of which $179 million was remaining at June 30, 2015. We purchased approximately 331,000 shares, or $28 million, of our common stock under our repurchase authorization during the three months ended June 30, 2015 and approximately 410,000, or $34.4 million, for the six months ended June 30, 2015. On April 23, 2015, our Board of Directors declared a regular quarterly dividend of $0.21 per common share, which was paid on May 22, 2015, to stockholders of record on May 8, 2015. On July 23, 2015, our Board of Directors declared a regular quarterly dividend of $0.21 per common share, which will be paid on August 14, 2015, to stockholders of record on July 31, 2015.