Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 39,185	$ 69,771	$ 23,092
Other comprehensive income (loss)
Reclassification adjustment for losses included in net income (interest expense)	319	424	176
Losses arising during the period	(5,592)	(27)
Losses arising during the period			(74)
Other comprehensive income	(5,273)	397	102
Comprehensive income	$ 33,912	$ 70,168	$ 23,194

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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