CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY AND CONVERTIBLE PREFERRED STOCK - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Total
Increase (Decrease) in Stockholders' Equity
Cumulative effect of adopting the pronouncement related to lease accounting, net of tax			$ (41,466)			$ (41,466)
Balance (as adjusted)	$ 967	$ 828,676	1,343,028	$ (1,642,140)	$ (938)	529,593
Balance (as adjusted) (in shares)	96,622,000
Balance, December 31, 2019 at Jan. 01, 2019	$ 967	828,676	1,384,494	(1,642,140)	(938)	571,059
Balance (in shares) at Jan. 01, 2019	96,622,000
Increase (Decrease) in Stockholders' Equity
Balance (as adjusted) (in shares)	97,384,000
Net (loss)/income			26,984			26,984
Foreign currency translation adjustment					239	239
Cash dividends declared			(14,952)			(14,952)
Stock-based compensation	$ 3	5,907				5,910
Stock-based compensation (in shares)	350,000
Common stock issued under stock-based compensation plans	$ 4	5,537				5,541
Common stock issued under stock-based compensation plans (in shares)	412,000
Treasury stock purchases				(11,071)		(11,071)
Balance, June 30, 2020 at Apr. 02, 2019	$ 974	840,120	1,355,060	(1,653,211)	(699)	542,244
Balance (in shares) at Apr. 02, 2019	97,384,000
Balance, December 31, 2019 at Jan. 01, 2019	$ 967	828,676	1,384,494	(1,642,140)	(938)	571,059
Balance (in shares) at Jan. 01, 2019	96,622,000
Increase (Decrease) in Stockholders' Equity
Balance (as adjusted) (in shares)	97,480,000
Net (loss)/income						62,494
Foreign currency translation adjustment						414
Balance, June 30, 2020 at Jul. 02, 2019	$ 975	845,461	1,375,671	(1,681,304)	(524)	540,279
Balance (in shares) at Jul. 02, 2019	97,480,000
Increase (Decrease) in Stockholders' Equity
Balance (as adjusted) (in shares)	97,384,000
Balance, December 31, 2019 at Apr. 02, 2019	$ 974	840,120	1,355,060	(1,653,211)	(699)	542,244
Balance (in shares) at Apr. 02, 2019	97,384,000
Increase (Decrease) in Stockholders' Equity
Balance (as adjusted) (in shares)	97,480,000
Net (loss)/income			35,510			35,510
Foreign currency translation adjustment					175	175
Cash dividends declared			(14,899)			(14,899)
Stock-based compensation	$ 1	4,691				4,692
Stock-based compensation (in shares)	47,000
Common stock issued under stock-based compensation plans		650				650
Common stock issued under stock-based compensation plans (in shares)	49,000
Treasury stock purchases				(28,093)		(28,093)
Balance, June 30, 2020 at Jul. 02, 2019	$ 975	845,461	1,375,671	(1,681,304)	(524)	540,279
Balance (in shares) at Jul. 02, 2019	97,480,000
Increase (Decrease) in Stockholders' Equity
Balance (as adjusted) (in shares)	97,480,000
Balance (as adjusted) (in shares)	97,685,000
Balance, December 31, 2019 at Dec. 31, 2019	$ 977	855,989	1,408,333	(1,693,122)	(435)	571,742
Balance (in shares) at Dec. 31, 2019	97,685,000
Increase (Decrease) in Stockholders' Equity
Balance (as adjusted) (in shares)	98,454,000
Net (loss)/income			(136,163)			(136,163)
Foreign currency translation adjustment					(936)	(936)
Change in derivative, net of tax					(2,370)	(2,370)
Cash dividends declared			(16,376)			(16,376)
Stock-based compensation	$ 6	5,541				5,547
Stock-based compensation (in shares)	566,000
Common stock issued under stock-based compensation plans	$ 2	111				113
Common stock issued under stock-based compensation plans (in shares)	203,000
Treasury stock purchases				(2,586)		(2,586)
Balance, June 30, 2020 at Mar. 31, 2020	$ 985	861,641	1,255,794	(1,695,708)	(3,741)	418,971
Balance (in shares) at Mar. 31, 2020	98,454,000
Balance, December 31, 2019 at Dec. 31, 2019	$ 977	855,989	1,408,333	(1,693,122)	(435)	571,742
Balance (in shares) at Dec. 31, 2019	97,685,000
Increase (Decrease) in Stockholders' Equity
Balance (as adjusted) (in shares)	98,465,000
Net (loss)/income						(192,702)
Foreign currency translation adjustment						(532)
Change in derivative, net of tax						(3,837)
Preferred stock direct costs						10,257
Balance, June 30, 2020 at Jun. 30, 2020	$ 985	866,803	1,184,919	(1,695,974)	(4,804)	$ 351,929
Balance (in shares) at Jun. 30, 2020	98,465,000
Balance (in shares) at Jun. 30, 2020						203,694
Increase (Decrease) in Stockholders' Equity
Balance (as adjusted) (in shares)	98,454,000
Balance, December 31, 2019 at Mar. 31, 2020	$ 985	861,641	1,255,794	(1,695,708)	(3,741)	$ 418,971
Balance (in shares) at Mar. 31, 2020	98,454,000
Increase (Decrease) in Stockholders' Equity
Balance (as adjusted) (in shares)	98,465,000
Net (loss)/income			(56,539)			(56,539)
Foreign currency translation adjustment					404	404
Change in derivative, net of tax					(1,467)	(1,467)
Stock-based compensation		5,162				5,162
Stock-based compensation (in shares)	(24,000)
Common stock issued under stock-based compensation plans (in shares)	35,000
Preferred stock direct costs			(10,257)			(10,257)
Preferred stock direct costs						10,257
Paid-in-kind preferred stock dividend, including beneficial conversion feature			4,079			$ (4,079)
Paid-in-kind preferred stock dividend, including beneficial conversion feature (in shares)						4,000
Treasury stock purchases				(266)		$ (266)
Balance, June 30, 2020 at Jun. 30, 2020	$ 985	$ 866,803	$ 1,184,919	$ (1,695,974)	$ (4,804)	$ 351,929
Balance (in shares) at Jun. 30, 2020	98,465,000
Balance (in shares) at Jun. 30, 2020						203,694
Increase (Decrease) in Stockholders' Equity
Balance (as adjusted) (in shares)	98,465,000