Note 21 - Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Year Ended December 31,
	2014	2013	2012
Expected lives of options (in years)	4.0	4.0	7.8
Expected volatility	43.2%	45.3%	44.6%
Risk free interest rate	1.3%	0.8%	1.7%
Dividend yield rate	3.5%	3.0%	4.0%

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Year Ended December 31,
	2014					2013					2012
				Weighted-					Weighted-					Weighted-
				Average					Average					Average
	Number of			Exercise		Number of			Exercise		Number of			Exercise
	Shares			Price		Shares			Price		Shares			Price
Outstanding Stock Option Activity
Outstanding, beginning of year		5,282,366		$	40.83		5,879,573		$	41.29		5,306,506		$	42.69
Granted (1)		257,500			28.18		237,500			33.82		1,382,500			25.33
Exercised		(18,000	)		20.82		(153,665	)		32.94		(704,242	)		23.69
Forfeited		(23,750	)		25.16		(10,000	)		37.25		(55,710	)		27.46
Cancelled		(642,200	)		62.43		(671,042	)		44.25		(49,481	)		44.75
Outstanding, end of year		4,855,916		$	37.45		5,282,366		$	40.83		5,879,573		$	41.29

Schedule of Nonvested Share Activity [Table Text Block]

	Year Ended December 31,
	2014					2013					2012
				Weighted-					Weighted-					Weighted-
	Number of			Average		Number of			Average		Number of			Average
	Shares			Fair Value		Shares			Fair Value		Shares			Fair Value
Unvested Stock Option Activity
Outstanding, beginning of year		838,541		$	9.50		2,045,000		$	8.63		1,251,328		$	10.74
Granted (1)		257,500			7.48		237,500			9.75		1,382,500			7.54
Vested		(604,583	)		7.77		(1,433,959	)		8.28		(533,118	)		8.61
Forfeited		(23,750	)		7.60		(10,000	)		12.72		(55,710	)		8.45
Unvested, end of year		467,708		$	9.51		838,541		$	9.50		2,045,000		$	8.63
___________________________

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]

Exercisable or expected to vest
Number outstanding		4,810,204
Weighted-average exercise price	$	37.51
Aggregate intrinsic value (in thousands)	$	2,780
Weighted-average remaining contractual term (years)		4.49
Exercisable
Number outstanding		4,129,875
Weighted-average exercise price	$	38.74
Aggregate intrinsic value (in thousands)	$	2,173
Weighted-average remaining contractual term (years)		4.59

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

		Options Outstanding						Options Exercisable
				Weighted-						Weighted-
				Average						Average
				Remaining		Weighted-				Remaining		Weighted-
				Contractual		Average				Contractual		Average
Range of		Number		Life (in		Exercise		Number		Life (in		Exercise
Exercise Price		Outstanding		years)		Price		Outstanding		years)		Price
$	15.84 - $ 23.77		142,500		7.00	$	20.94		42,500		6.79	$	21.83
$	23.78 - $ 39.61		3,230,416		6.14		29.61		2,912,708		6.01		29.51
$	39.62 - $ 47.53		578,000		2.88		42.88		528,000		2.39		43.17
$	55.45 - $ 63.38		600,000		1.65		60.49		600,000		1.65		60.49
$	63.39 - $ 71.30		180,000		1.00		68.18		180,000		1.00		68.18
$	71.31 - $ 100		125,000		0.75		78.89		125,000		0.75		78.89
Total			4,855,916		4.89	$	37.45		4,388,208		4.63	$	38.31

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

	Year Ended December 31,
	2014					2013					2012
				Weighted-					Weighted-					Weighted-
				Average					Average					Average
	Number of			Grant Date		Number of			Grant Date		Number of			Grant Date
	Shares			Fair Value		Shares			Fair Value		Shares			Fair Value
Unvested, beginning of year		298,991		$	32.87		507,367		$	31.69		667,849		$	33.19
Granted		39,021		$	30.85		25,072			37.52		48,613			27.85
Vested		(141,454	)	$	33.08		(144,841	)		31.88		(197,801	)		35.88
Forfeited		(12,717	)	$	33.05		(88,607	)		29.02		(11,294	)		30.62
Unvested, end of year		183,841		$	32.27		298,991		$	32.87		507,367		$	31.69