Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.

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Amount of increase (decrease) in additional paid in capital (APIC) resulting from recognition of deferred taxes for convertible debt with a beneficial conversion feature.

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Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital.

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Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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The value of dividends forfeited related to restricted stock awards forfeited.

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Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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Number of shares issued during the period as a result of the conversion of convertible securities.

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Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Consolidated Statements of Stockholders' (Deficit) Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income
Beginning Balance (in shares) at Dec. 31, 2016		68,399
Beginning Balance at Dec. 31, 2016	$ (117,563)	$ 114	$ (1,725,349)	$ 922,687	$ 693,682	$ (8,697)
Increase (Decrease) in Stockholders' Equity
Comprehensive (loss) income	(147,396)				(150,262)	2,866
Dividend forfeitures on restricted stock	394				394
Restricted stock awards (in shares)		574
Restricted stock awards	1	$ 1
Minimum tax withholding requirements (in shares)		(32)
Minimum tax withholding requirements	(253)			(253)
Stock-based compensation	8,359			8,359
Exchange of convertible senior notes (in shares)		14,626
Exchange of convertible senior notes	70,537	$ 15		70,522
Ending Balance (in shares) at Dec. 31, 2017		83,567
Ending Balance at Dec. 31, 2017	(185,921)	$ 130	(1,725,349)	1,001,315	543,814	(5,831)
Increase (Decrease) in Stockholders' Equity
Comprehensive (loss) income	65,056				69,780	(4,724)
Dividend forfeitures on restricted stock	43				43
Restricted stock awards (in shares)		398
Restricted stock awards	0	$ 0
Minimum tax withholding requirements (in shares)		(79)
Minimum tax withholding requirements	(296)			(296)
Stock-based compensation	6,808			6,808
Ending Balance (in shares) at Dec. 31, 2018		83,886
Ending Balance at Dec. 31, 2018	(114,310)	$ 130	(1,725,349)	1,007,827	613,637	(10,555)
Increase (Decrease) in Stockholders' Equity
Comprehensive (loss) income	(37,283)				(35,112)	(2,171)
Dividend forfeitures on restricted stock	16				16
Restricted stock awards (in shares)		768
Restricted stock awards	0	$ 1		(1)
Minimum tax withholding requirements (in shares)		(90)
Minimum tax withholding requirements	(233)			(233)
Stock-based compensation	4,563			4,563
Repurchase of convertible senior notes	(80)			(80)
Ending Balance (in shares) at Dec. 31, 2019		84,564
Ending Balance at Dec. 31, 2019	$ (207,263)	$ 131	$ (1,725,349)	$ 1,012,076	$ 518,605	$ (12,726)