Note 15 - Accumulated Other Comprehensive Income (Loss) - Level 3

12 Months Ended

Dec. 31, 2020

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following tables show the rollforward of accumulated other comprehensive income (loss) as of the periods indicated.

	Year Ended December 31, 2020
(In thousands)	Before Tax		Tax Effect		Net of Tax
Balance at beginning of period	$	139,858	$	29,370	$	110,488
Other comprehensive income (loss):
Unrealized gains (losses) on investments:
Unrealized holding gains (losses) arising during the period for which an allowance for expected credit losses has not been recognized	226,280		47,519		178,761
Less: Reclassification adjustment for net gains (losses) included in net income (loss): (1)
Net realized gains (losses) on disposals and non-credit related impairment losses	33,468		7,028		26,440
Net decrease (increase) in expected credit losses	(1,254)		(263)		(991)
Net unrealized gains (losses) on investments	194,066		40,754		153,312
Other adjustments to comprehensive income, net	(95)		(20)		(75)
Other comprehensive income (loss)	193,971		40,734		153,237
Balance at end of period	$	333,829	$	70,104	$	263,725

	Year Ended December 31, 2019
(In thousands)	Before Tax		Tax Effect		Net of Tax
Balance at beginning of period	$	(77,114)	$	(16,194)	$	(60,920)
Other comprehensive income (loss):
Unrealized gains (losses) on investments:
Unrealized holding gains (losses) arising during the period	228,406		47,965		180,441
Less: Reclassification adjustment for net gains (losses) included in net income (1)	11,262		2,365		8,897
Net unrealized gains (losses) on investments	217,144		45,600		171,544
Other adjustments to comprehensive income, net	(172)		(36)		(136)
Other comprehensive income (loss)	216,972		45,564		171,408
Balance at end of period	$	139,858	$	29,370	$	110,488

	Year Ended December 31, 2018
(In thousands)	Before Tax		Tax Effect		Net of Tax
Balance at beginning of period	$	32,669	$	9,584	$	23,085
Cumulative effect of adopting accounting standard updates	284		(2,664)		2,948
Balance adjusted for cumulative effect of adopting accounting standard updates	32,953		6,920		26,033
Other comprehensive income (loss):
Unrealized gains (losses) on investments:
Unrealized holding gains (losses) arising during the period	(123,235)		(25,879)		(97,356)
Less: Reclassification adjustment for net gains (losses) included in net income (1)	(13,000)		(2,730)		(10,270)
Net unrealized gains (losses) on investments	(110,235)		(23,149)		(87,086)
Other adjustments to comprehensive income, net	168		35		133
Other comprehensive income (loss)	(110,067)		(23,114)		(86,953)
Balance at end of period	$	(77,114)	$	(16,194)	$	(60,920)

(1)Included in net gains (losses) on investments and other financial instruments in our consolidated statements of operations.