CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands		Total		Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive (Loss)	Total Stockholders' Equity	Treasury Stock	Noncontrolling Interest
Balance at the beginning of the period at Dec. 31, 2016		$ 2,571,510		$ 398	$ 2,853,269	$ (277,912)	$ (6,786)	$ 2,567,738	$ (1,231)	$ 3,772
Balance at the beginning of the period (in shares) at Dec. 31, 2016				39,802,064
Balance at the beginning of the period (in shares) at Dec. 31, 2016									(12,061)
Increase (Decrease) in Stockholders' Equity
Net income		5,659				5,659		5,659
Interest rate swaps, net of tax		433	[1]				433	433
Capitalized swap interest, net of tax		(75)	[2]				(75)	(75)
Stock plan activity		8,844		$ 3	8,841			8,844
Stock plan activity (in shares)				249,378
Exercise of Warrants		$ 30,935		$ 3	30,932			30,935
Exercise of warrants (in shares)		272,598
Adoption of ASU 2017-12	[3]	$ 0
Adoption of ASU 2018-02	[4]	0
Balance at the end of the period at Mar. 31, 2017		2,617,306		$ 404	2,893,042	(272,253)	(6,428)	2,613,534	$ (1,231)	3,772
Balance at the end of the period (in shares) at Mar. 31, 2017				40,324,040
Balance at the end of the period (in shares) at Mar. 31, 2017									(12,061)
Increase (Decrease) in Stockholders' Equity
Cumulative effect of adjustment		(69,732)				(69,732)		(69,732)
Balance at the beginning of the period at Dec. 31, 2017		3,188,551		$ 433	3,302,502	(109,508)	(6,965)	3,182,986	$ (3,476)	5,565
Balance at the beginning of the period (in shares) at Dec. 31, 2017				43,300,253
Balance at the beginning of the period (in shares) at Dec. 31, 2017									(29,373)
Increase (Decrease) in Stockholders' Equity
Net income		1,834				1,474		1,474		360
Interest rate swaps, net of tax		8,045	[1]				8,045	8,045
Capitalized swap interest, net of tax		10	[2]				10	10
Stock plan activity		7,922		$ 3	7,919			7,922
Stock plan activity (in shares)				191,342
Preferred dividend payment on behalf of subsidiary		0								0
Adoption of ASU 2017-12		(739)	[3]			739	(739)
Adoption of ASU 2018-02		(1,148)	[4]			1,148	(1,148)
Repurchase of common shares (in shares)									(475,920)
Repurchase of common shares		(57,267)						(57,267)	$ (57,267)
Balance at the end of the period at Mar. 31, 2018		$ 3,079,363		$ 436	$ 3,310,421	$ (175,879)	$ (797)	$ 3,073,438	$ (60,743)	$ 5,925
Balance at the end of the period (in shares) at Mar. 31, 2018				43,491,595
Balance at the end of the period (in shares) at Mar. 31, 2018									(505,293)

[1] Amounts are shown net of deferred tax expense of $2.1 million and $0.3 million for the three months ended March 31, 2018 and 2017, respectively.

[2] The deferred tax impact was immaterial for the three months ended March 31, 2018. Amount is net of deferred tax benefit of $0.1 million for the three months ended March 31, 2017.

[3] The Company adopted ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, as of January 1, 2018. See Note 2 - Accounting Policies and Pronouncements for further discussion.

[4] The Company adopted Accounting Standards Update ("ASU") 2018-02, Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, as of January 1, 2018. See Note 2 - Accounting Policies and Pronouncements for further discussion.