Note 21 - Supplemental Guarantor Information - Supplemental Condensed Combining Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Net cash provided by (used in) operating activities	$ 54,348	$ (61,486)
Net cash provided by (used in) investing activities	(6,434)	(6,377)
Payments from (advances to) subsidiaries
Mortgage repurchase facility	(31,959)	(22,214)
Dividend payments	(17,115)	(16,865)
Proceeds from exercise of stock options	7,087	282
Net cash provided by (used in) financing activities	(41,987)	(38,797)
Net increase (decrease) in cash and cash equivalents	5,927	(106,660)
Beginning of period	470,139	514,240
Cash and cash equivalents	476,066	407,580
Reportable Legal Entities [Member] \| Parent Company [Member]
Net cash provided by (used in) operating activities	(18,145)	(8,950)
Net cash provided by (used in) investing activities	29,796	(94,576)
Payments from (advances to) subsidiaries
Mortgage repurchase facility
Dividend payments	(17,115)	(16,865)
Proceeds from exercise of stock options	7,087	282
Net cash provided by (used in) financing activities	(10,028)	(16,583)
Net increase (decrease) in cash and cash equivalents	1,623	(120,109)
Beginning of period	410,127	468,718
Cash and cash equivalents	411,750	348,609
Reportable Legal Entities [Member] \| Guarantor Subsidiaries [Member]
Net cash provided by (used in) operating activities	31,508	(79,547)
Net cash provided by (used in) investing activities	(6,094)	(6,250)
Payments from (advances to) subsidiaries	(23,614)	83,203
Mortgage repurchase facility
Dividend payments
Proceeds from exercise of stock options
Net cash provided by (used in) financing activities	(23,614)	83,203
Net increase (decrease) in cash and cash equivalents	1,800	(2,594)
Beginning of period	10,960	13,051
Cash and cash equivalents	12,760	10,457
Reportable Legal Entities [Member] \| Non-Guarantor Subsidiaries [Member]
Net cash provided by (used in) operating activities	40,985	27,011
Net cash provided by (used in) investing activities	(93)	(60)
Payments from (advances to) subsidiaries	(6,429)	11,306
Mortgage repurchase facility	(31,959)	(22,214)
Dividend payments
Proceeds from exercise of stock options
Net cash provided by (used in) financing activities	(38,388)	(10,908)
Net increase (decrease) in cash and cash equivalents	2,504	16,043
Beginning of period	49,052	32,471
Cash and cash equivalents	51,556	48,514
Consolidation, Eliminations [Member]
Net cash provided by (used in) operating activities
Net cash provided by (used in) investing activities	(30,043)	94,509
Payments from (advances to) subsidiaries	30,043	(94,509)
Mortgage repurchase facility
Dividend payments
Proceeds from exercise of stock options
Net cash provided by (used in) financing activities	30,043	(94,509)
Net increase (decrease) in cash and cash equivalents
Beginning of period
Cash and cash equivalents

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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