Note 14 - Selected Financial Information of Registrant (Tables)

3 Months Ended

Mar. 31, 2015

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Selected Financial Information Of Registrant [Table Text Block]

(In thousands)	March 31, 2015		December 31, 2014
Investment in subsidiaries, at equity in net assets	$	2,960,604	$	2,746,915
Total assets	3,870,760		3,759,275
Long-term debt	1,218,972		1,209,926
Total liabilities	1,594,866		1,587,525
Equity component of currently redeemable convertible senior notes	68,982		74,690
Total stockholders’ equity	2,206,912		2,097,060
Total liabilities and stockholders’ equity	3,870,760		3,759,275