CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (3,058)	$ 2,882
Bond related changes:
Net unrealized (losses) gains	(1,763)	406
Reclassification of fair value gains on sold or redeemed bonds into the Consolidated Statements of Operations	0	(3,571)
Income tax benefit	484	0
Net change in other comprehensive loss due to bonds, net of taxes	(1,279)	(3,165)
Foreign currency translation adjustment	826	25
Other comprehensive loss	(453)	(3,140)
Comprehensive loss	$ (3,511)	$ (258)