CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net income:		$ 26,661	$ 31,602	$ 59,236
Other comprehensive income (loss):
Interest rate swap		(336)
Reclassification of net realized (gain) loss included in earnings		(69)	1,061	(10,750)
Reclassification into retained earnings	[1]		932
Reclassification of other-than-temporary impairment loss included in earnings			2,330	2,288
Total before income taxes		455	1,472	(6,456)
Income (expense) tax benefit	[2]	(116)	(685)	2,488
Total other comprehensive (loss) income, net of tax		339	787	(3,968)
Total comprehensive income, net of tax		27,000	32,389	55,268
Unrestricted available-for-sale, Debt securities
Other comprehensive income (loss):
Net unrealized gain (loss) on investments		842	(2,845)
Unrestricted available-for-sale, Debt and equity securities
Other comprehensive income (loss):
Net unrealized gain (loss) on investments				2,015
Restricted
Other comprehensive income (loss):
Net unrealized gain (loss) on investments		$ 18	$ (6)	$ (9)

[1] The reclassification into retained earnings for the year ended December 31, 2018 relates to the adoption of ASU 2016-01 Financial Instruments - Overall, as amended (“ASU 2016-01”). The new guidance was effective January 1, 2018, and required equity investments to be measured at fair value with changes in fair value recognized in results of operations rather than the consolidated statements of comprehensive income.

[2] Income tax expense for the year ended December 31, 2018 includes $0.3 million of income tax expense related to the adoption of ASU 2018-02 Income Statement - Reporting Comprehensive Income (“ASU 2018-02”). The new guidance was effective January 1, 2018, and allowed a reclassification from accumulated other comprehensive loss to retained earnings for stranded tax effects resulting from the Tax Act.