Note 14 - Selected Financial Information of Registrant (Tables)

9 Months Ended

Sep. 30, 2015

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Selected Financial Information Of Registrant [Table Text Block]

(In thousands)	September 30, 2015		December 31, 2014
Investment in subsidiaries, at equity in net assets	$	3,098,153	$	2,746,915
Total assets	3,964,605		3,741,648
Long-term debt	1,230,246		1,192,299
Total liabilities	1,521,298		1,569,898
Equity component of currently redeemable convertible senior notes	7,737		74,690
Total stockholders’ equity	2,435,570		2,097,060
Total liabilities and stockholders’ equity	3,964,605		3,741,648