Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Cash and Cash Equivalents and Restricted Cash [Table Text Block]

	December 31,		December 31,		December 31,		December 31,
(In thousands)	2019		2018		2017		2016
Cash and cash equivalents	$	249,977	$	249,417	$	203,104	$	193,862
Restricted cash		20,471		23,785		24,175		16,488
Total cash, cash equivalents and restricted cash	$	270,448	$	273,202	$	227,279	$	210,350

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	Year Ended December 31,
(In thousands)	2019			2018			2017
Beginning balance, January 1,	$	3,607		$	2,072		$	1,971
Additions due to Acquisitions		—			1,425			—
Additions		929			180			478
Deductions		(62	)		(70	)		(377	)
Ending balance, December 31,	$	4,474		$	3,607		$	2,072

Property, Plant and Equipment, Useful Life [Table Text Block]

Building and improvements	3 through 40 years
Riverboats and barges	5 through 40 years
Furniture and equipment	1 through 10 years

Investments Classified by Contractual Maturity Date [Table Text Block]

(In thousands)
For the year ending December 31,
2020	$	550
2021		590
2022		635
2023		680
2024		730
Thereafter		16,350
Total	$	19,535

Schedule of Changes in Self Insurance Reserves [Table Text Block]

	Year Ended December 31,
(In thousands)	2019			2018			2017
Beginning balance, January 1,	$	37,501		$	33,995		$	31,022
Additions
Charged to costs and expenses		121,075			90,299			84,209
Due to acquisitions		—			3,279			—
Payments made		(114,972	)		(90,072	)		(81,236	)
Ending balance, December 31,	$	43,604		$	37,501		$	33,995

Schedule Of Promotional Allowances [Table Text Block]

	Year Ended December 31,
(In thousands)	2019		2018		2017
Food & beverage	$	215,989	$	182,960	$	171,904
Rooms		96,296		81,671		76,565
Other		14,908		11,939		10,900