Note 19 - Share-based Compensation - Summary of Information Concerning Stock Options Outstanding Including the Related Transactions under the Stock Option Plans (Details) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares
Balance, number of shares (in shares) | shares	42,738
Balance, weighted-average exercise price (in dollars per share) | $ / shares	$ 19.40
Granted, number of shares (in shares) | shares	1,680
Granted, weighted-average exercise price (in dollars per share) | $ / shares	$ 20.01
Exercised, number of shares (in shares) | shares	(8,549)
Exercised, weighted-average exercise price (in dollars per share) | $ / shares	$ 16.16
Forfeited and expired, number of shares (in shares) | shares	(4,362)
Forfeited and expired, weighted-average exercise price (in dollars per share) | $ / shares	$ 25.97
Balance, number of shares (in shares) | shares	31,507
Balance, weighted-average exercise price (in dollars per share) | $ / shares	$ 19.40
Options Outstanding, weighted-average remaining contractual term in years (Year)	3 years 288 days
Options Outstanding, aggregate intrinsic value | $	$ 160,932
Options Expected to Vest, number of shares (in shares) | shares	31,469
Options Expected to Vest, weighted-average exercise price (in dollars per share) | $ / shares	$ 19.40
Options Expected to Vest, weighted-average remaining contractual term in years (Year)	3 years 288 days
Options Expected to Vest, aggregate intrinsic value | $	$ 160,794
Options Exercisable, number of shares (in shares) | shares	26,723
Options Exercisable, weighted-average exercise price (in dollars per share) | $ / shares	$ 19.15
Options Exercisable, weighted-average remaining contractual term in years (Year)	2 years 357 days
Options Exercisable, aggregate intrinsic value | $	$ 144,236