CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Dividends declared per share (in dollars per share)	$ 0.72	$ 0.60	$ 0.48
Accounting Standards Update 2014-09
Tax effect of new accounting standard		$ 63
Accumulated Other Comprehensive Income (Loss)
Defined benefit pension plans, tax expense (benefit)		314	$ (207)
Interest rate swap, tax expense		$ 107	$ 189
Interest rate swap, tax benefit	$ 272

Aggregate dividends declared during the period for each share of common stock outstanding.

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