Note 14 - Selected Financial Information of Registrant (Tables)

6 Months Ended

Jun. 30, 2015

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Selected Financial Information Of Registrant [Table Text Block]

(In thousands)	June 30, 2015		December 31, 2014
Investment in subsidiaries, at equity in net assets	$	3,018,264	$	2,746,915
Total assets	3,869,439		3,741,648
Long-term debt	1,224,892		1,192,299
Total liabilities	1,507,495		1,569,898
Equity component of currently redeemable convertible senior notes	8,546		74,690
Total stockholders’ equity	2,353,398		2,097,060
Total liabilities and stockholders’ equity	3,869,439		3,741,648