CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (UNAUDITED) (in thousands, except share amounts) - 3 months ended Mar. 31, 2017 - USD ($) $ in Thousands		Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Common Stock, Dividends, Per Share, Declared		$ 0.05
Balances, Common Shares, Beginning at Dec. 31, 2016		111,257,500	111,257,500
Balances, Beginning at Dec. 31, 2016		$ 2,497,133	$ 1,113	$ 1,716,556	$ 794,020	$ (14,556)
Increase (Decrease) in Stockholders' Equity
Net income		74,434			74,434
Other Comprehensive Loss		(567)				(567)
Dividends declared, $0.05 per share		(5,563)			(5,563)
Issuance of common stock upon vesting of restricted stock units, net of shares used for tax withholdings (in shares)			725
Issuance of common stock upon vesting of restricted stock units, net of shares used for tax withholdings		(11)		(11)
Stock-based compensation expense		5,455		5,455
Cumulative effect of accounting change	[1]	44,732		1,108	43,624
Other Adjustments to Additional Paid in Capital		$ (98)		(98)
Balances, Common Shares, Ending at Mar. 31, 2017		111,258,225	111,258,225
Balances, Ending at Mar. 31, 2017		$ 2,615,515	$ 1,113	$ 1,723,010	$ 906,515	$ (15,123)

[1] Refer to Note 2 - Basis of Presentation, Significant Accounting Policies, and Recently Issued Accounting Standards.