Consolidated Condensed Statements of Changes In Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Earnings
Beginning Balance at Dec. 31, 2019	$ 472,650	$ 102,507	$ 10,852	$ (42,441)	$ 401,732
Beginning Balance (in shares) at Dec. 31, 2019		32,674,000
Net income (loss)	11,873				11,873
Other comprehensive income (loss)	(12,490)			(12,490)
Stock compensation, net	7,440	$ 8,644	(1,204)
Stock compensation, net, shares		171,000
Stock repurchase	(9,092)	$ (9,092)
Stock repurchase (in shares)		(246,000)
Ending Balance at Mar. 31, 2020	470,381	$ 102,059	9,648	(54,931)	413,605
Ending Balance (in shares) at Mar. 31, 2020		32,599,000
Beginning Balance at Dec. 31, 2019	472,650	$ 102,507	10,852	(42,441)	401,732
Beginning Balance (in shares) at Dec. 31, 2019		32,674,000
Net income (loss)	25,697
Other comprehensive income (loss)	9,955
Ending Balance at Sep. 30, 2020	511,796	$ 107,055	9,798	(32,486)	427,429
Ending Balance (in shares) at Sep. 30, 2020		32,680,000
Beginning Balance at Mar. 31, 2020	470,381	$ 102,059	9,648	(54,931)	413,605
Beginning Balance (in shares) at Mar. 31, 2020		32,599,000
Net income (loss)	(10,322)				(10,322)
Other comprehensive income (loss)	7,086			7,086
Stock compensation, net	2,176	$ 2,054	122
Stock compensation, net, shares		41,000
Ending Balance at Jun. 30, 2020	469,321	$ 104,113	9,770	(47,845)	403,283
Ending Balance (in shares) at Jun. 30, 2020		32,640,000
Net income (loss)	24,146				24,146
Other comprehensive income (loss)	15,359			15,359
Stock compensation, net	2,970	$ 2,942	28
Stock compensation, net, shares		40,000
Ending Balance at Sep. 30, 2020	511,796	$ 107,055	9,798	(32,486)	427,429
Ending Balance (in shares) at Sep. 30, 2020		32,680,000
Beginning Balance at Dec. 31, 2020	$ 586,331	$ 121,073	7,458	(14,982)	472,782
Beginning Balance (in shares) at Dec. 31, 2020	32,921,341	32,921,000
Net income (loss)	$ 32,909				32,909
Other comprehensive income (loss)	(13,674)			(13,674)
Stock compensation, net	7,192	$ 8,527	(1,335)
Stock compensation, net, shares		190,000
Ending Balance at Mar. 31, 2021	612,758	$ 129,600	6,123	(28,656)	505,691
Ending Balance (in shares) at Mar. 31, 2021		33,111,000
Beginning Balance at Dec. 31, 2020	$ 586,331	$ 121,073	7,458	(14,982)	472,782
Beginning Balance (in shares) at Dec. 31, 2020	32,921,341	32,921,000
Net income (loss)	$ 73,386
Other comprehensive income (loss)	(17,135)
Ending Balance at Sep. 30, 2021	$ 655,480	$ 135,449	5,980	(32,117)	546,168
Ending Balance (in shares) at Sep. 30, 2021	33,224,779	33,225,000
Beginning Balance at Mar. 31, 2021	$ 612,758	$ 129,600	6,123	(28,656)	505,691
Beginning Balance (in shares) at Mar. 31, 2021		33,111,000
Net income (loss)	24,791				24,791
Other comprehensive income (loss)	4,480			4,480
Stock compensation, net	3,181	$ 3,142	39
Stock compensation, net, shares		34,000
Ending Balance at Jun. 30, 2021	645,210	$ 132,742	6,162	(24,176)	530,482
Ending Balance (in shares) at Jun. 30, 2021		33,145,000
Net income (loss)	15,686				15,686
Other comprehensive income (loss)	(7,941)			(7,941)
Stock compensation, net	2,525	$ 2,707	(182)
Stock compensation, net, shares		80,000
Ending Balance at Sep. 30, 2021	$ 655,480	$ 135,449	$ 5,980	$ (32,117)	$ 546,168
Ending Balance (in shares) at Sep. 30, 2021	33,224,779	33,225,000