CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance (in Shares) at Dec. 31, 2018		99,141,374
Balance at Dec. 31, 2018	$ 2,923,833	$ 991	$ 1,220,147	$ 1,697,822	$ 4,873
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	125,181			147,423	(22,242)
Dividends ($0.46 per common share)	(41,885)			(41,885)
Equity based compensation (in Shares)		582,353
Equity based compensation	9,056	$ 6	9,050
Forfeiture of unvested shares (in Shares)		(286,927)
Forfeiture of unvested shares and shares surrendered for tax withholding obligations	$ (6,254)	$ (3)	(6,251)
Exercise of stock options (in Shares)	3,910	3,910
Exercise of stock options	$ 44	$ 0	44
Stock Repurchased During Period, Shares		(4,125,077)
Stock Repurchased During Period, Value	(142,065)	$ (41)	(142,024)
Balance (in Shares) at Jun. 30, 2019		95,315,633
Balance at Jun. 30, 2019	2,867,910	$ 953	1,080,966	1,803,360	(17,369)
Balance (in Shares) at Dec. 31, 2018		99,141,374
Balance at Dec. 31, 2018	$ 2,923,833	$ 991	1,220,147	1,697,822	4,873
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Dividends, Per Share, Declared	$ 0.84
Balance (in Shares) at Dec. 31, 2019		95,128,231
Balance at Dec. 31, 2019	$ 2,980,779	$ 951	1,083,920	1,927,735	(31,827)
Balance (in Shares) at Mar. 31, 2019		98,404,303
Balance at Mar. 31, 2019	2,923,390	$ 984	1,179,235	1,742,530	641
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	63,441			81,451	(18,010)
Dividends ($0.46 per common share)	(20,621)			(20,621)
Equity based compensation (in Shares)		18,383
Equity based compensation	3,967	$ 0	3,967
Forfeiture of unvested shares (in Shares)		(95,061)
Forfeiture of unvested shares and shares surrendered for tax withholding obligations	(176)	$ (1)	(175)
Stock Repurchased During Period, Shares		(3,011,992)
Stock Repurchased During Period, Value	(102,091)	$ (30)	(102,061)
Balance (in Shares) at Jun. 30, 2019		95,315,633
Balance at Jun. 30, 2019	$ 2,867,910	$ 953	1,080,966	1,803,360	(17,369)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, shares issued (in Shares)	95,315,633
Common stock, shares issued (in Shares)	95,128,231
Balance (in Shares) at Dec. 31, 2019		95,128,231
Balance at Dec. 31, 2019	$ 2,980,779	$ 951	1,083,920	1,927,735	(31,827)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	(65,635)			45,557	(111,192)
Dividends ($0.46 per common share)	$ (43,836)			(43,836)
Common Stock, Dividends, Per Share, Declared	$ 0.84
Equity based compensation (in Shares)		743,696
Equity based compensation	$ 11,436	$ 8	11,428
Forfeiture of unvested shares (in Shares)		(186,072)
Forfeiture of unvested shares and shares surrendered for tax withholding obligations	$ (4,431)	$ (3)	(4,428)
Exercise of stock options (in Shares)	60,000	60,000
Exercise of stock options	$ 1,529	$ 1	1,528
Stock Repurchased During Period, Shares		(3,325,577)
Stock Repurchased During Period, Value	(100,972)	$ (33)	(100,939)
Balance at Jun. 30, 2020	2,755,053	$ 924	991,509	1,905,639	(143,019)
Balance (in Shares) at Mar. 31, 2020		92,406,294
Balance at Mar. 31, 2020	2,516,129	$ 924	987,757	1,851,040	(323,592)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	257,081			76,508	180,573
Dividends ($0.46 per common share)	(21,909)			(21,909)
Equity based compensation (in Shares)		56,688
Equity based compensation	3,763	$ 1	3,762
Forfeiture of unvested shares (in Shares)		(42,704)
Forfeiture of unvested shares and shares surrendered for tax withholding obligations	(11)	$ (1)	(10)
Balance at Jun. 30, 2020	2,755,053	$ 924	$ 991,509	1,905,639	$ (143,019)
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2016-13 [Member]	$ (23,817)			$ 23,817
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, shares issued (in Shares)	92,420,278