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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement Of Income and Comprehensive Income
Net income	$ 8,990	$ 6,119	$ 16,599	$ 11,380
Other comprehensive income, net of taxes:
Pension adjustment	15	14	34	29
Unrealized gain on securities, net of reclassification adjustments	9	14	16	36
Comprehensive income	$ 9,014	$ 6,147	$ 16,649	$ 11,445

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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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