CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings (Deficit)	Accumulated Other Comprehensive Loss, net	Non-controlling Interest	Total
Balance at Dec. 31, 2018	$ 712	$ 513,070	$ (50,834)	$ (53,212)	$ 5,918	$ 415,654
Balance (in shares) at Dec. 31, 2018	71,187
Increase (Decrease) in Stockholders' Equity
Cash dividends on common stock		(27,356)	(576)			(27,932)
Shares issued under employee plan, net of forfeitures	$ 9	(9)
Shares issued under employee plan, net of forfeitures (in shares)	923
Non-cash, share-based compensation		1,498				1,498
Other comprehensive income (loss)				(6,446)		(6,446)
Cumulative adjustment of new accounting standard adoption | ASU 2017-12			576			576
Net income (loss)			(7,265)		79	(7,186)
Balance at Mar. 31, 2019	$ 721	487,203	(58,099)	(59,658)	5,997	376,164
Balance (in shares) at Mar. 31, 2019	72,110
Balance at Dec. 31, 2018	$ 712	513,070	(50,834)	(53,212)	5,918	415,654
Balance (in shares) at Dec. 31, 2018	71,187
Increase (Decrease) in Stockholders' Equity
Net income (loss)						(14,498)
Balance at Jun. 30, 2019	$ 721	489,084	(65,486)	(71,218)	6,072	359,173
Balance (in shares) at Jun. 30, 2019	72,076
Balance at Mar. 31, 2019	$ 721	487,203	(58,099)	(59,658)	5,997	376,164
Balance (in shares) at Mar. 31, 2019	72,110
Increase (Decrease) in Stockholders' Equity
Cash dividends on common stock		67				67
Shares issued under employee plan, net of forfeitures (in shares)	(34)
Non-cash, share-based compensation		1,814				1,814
Other comprehensive income (loss)				(11,560)		(11,560)
Net income (loss)			(7,387)		75	(7,312)
Balance at Jun. 30, 2019	$ 721	489,084	(65,486)	(71,218)	6,072	359,173
Balance (in shares) at Jun. 30, 2019	72,076
Balance at Dec. 31, 2019	$ 720	492,246	(71,217)	(80,868)	6,370	347,251
Balance (in shares) at Dec. 31, 2019	71,961
Increase (Decrease) in Stockholders' Equity
Shares issued under employee plan, net of forfeitures	$ 11	(11)
Shares issued under employee plan, net of forfeitures (in shares)	1,081
Non-cash, share-based compensation		890				890
Other comprehensive income (loss)				(10,000)		(10,000)
Cumulative adjustment of new accounting standard adoption | ASU 2016-13			(105)			(105)
Net income (loss)			15,547		76	15,623
Balance at Mar. 31, 2020	$ 731	493,125	(55,775)	(90,868)	6,446	353,659
Balance (in shares) at Mar. 31, 2020	73,042
Balance at Dec. 31, 2019	$ 720	492,246	(71,217)	(80,868)	6,370	347,251
Balance (in shares) at Dec. 31, 2019	71,961
Increase (Decrease) in Stockholders' Equity
Other comprehensive income (loss)						(7,551)
Net income (loss)						29,558
Balance at Jun. 30, 2020	$ 731	495,459	(42,104)	(88,419)	6,541	372,208
Balance (in shares) at Jun. 30, 2020	73,058
Balance at Mar. 31, 2020	$ 731	493,125	(55,775)	(90,868)	6,446	353,659
Balance (in shares) at Mar. 31, 2020	73,042
Increase (Decrease) in Stockholders' Equity
Shares issued under employee plan, net of forfeitures (in shares)	16
Non-cash, share-based compensation		2,334				2,334
Other comprehensive income (loss)				2,449		2,449
Cumulative adjustment of new accounting standard adoption | ASU 2016-13			(169)			(169)
Net income (loss)			13,840		95	13,935
Balance at Jun. 30, 2020	$ 731	$ 495,459	$ (42,104)	$ (88,419)	$ 6,541	$ 372,208
Balance (in shares) at Jun. 30, 2020	73,058