Condensed Consolidating Financial Information Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	$ 40,576	$ 554
Cash flows from investing activities:
Sale of investment securities	0	17,792
Purchase of investment securities	0	(1,788)
Proceeds from sale or liquidation of long-term investments	0	8,886
Purchase of long-term investments	(5,000)	0
Investments in non-consolidated real estate businesses	(25)	(1,672)
Proceeds from sale of townhome	0	11,635
Distributions from non-consolidated real estate businesses	740	2,165
Increase in cash surrender value of life insurance policies	(472)	(405)
Decrease in restricted assets	1,286	831
Issuance of notes receivable	(43)	(91)
Investments in subsidiaries	0	0
Proceeds from sale of fixed assets	11	0
Capital expenditures	(2,243)	(2,661)
Net cash (used in) provided by investing activities	(5,746)	34,692
Cash flows from financing activities:
Proceeds from debt issuance	9,870	433
Deferred financing costs	(150)	0
Repayments of debt	(11,526)	(1,444)
Borrowings under revolver	236,595	216,843
Repayments on revolver	(258,064)	(244,076)
Capital contributions received	0	0
Intercompany dividends paid	0	0
Dividends and distributions on common stock	(32,975)	(31,076)
Proceeds from exercise of Vector options	44	0
Tax benefit of options exercised	4	665
Net cash (used in) provided by financing activities	(56,202)	(58,655)
Net (decrease) increase in cash and cash equivalents	(21,372)	(23,409)
Cash and cash equivalents, beginning of period	240,923	299,825
Cash and cash equivalents, end of period	219,551	276,416
Parent/Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	(7,184)	10,006
Cash flows from investing activities:
Sale of investment securities		0
Purchase of investment securities		0
Proceeds from sale or liquidation of long-term investments		8,886
Purchase of long-term investments	(5,000)
Investments in non-consolidated real estate businesses	0	0
Proceeds from sale of townhome		0
Distributions from non-consolidated real estate businesses	0	0
Increase in cash surrender value of life insurance policies	(425)	(286)
Decrease in restricted assets	271	543
Issuance of notes receivable	(43)	(91)
Investments in subsidiaries	(658)	(2,328)
Proceeds from sale of fixed assets	0
Capital expenditures	(759)	(11)
Net cash (used in) provided by investing activities	(6,614)	6,713
Cash flows from financing activities:
Proceeds from debt issuance	0	6
Deferred financing costs	0	0
Repayments of debt	0	0
Borrowings under revolver	0	0
Repayments on revolver	0	0
Capital contributions received	0	0
Intercompany dividends paid	0	0
Dividends and distributions on common stock	(32,975)	(31,076)
Proceeds from exercise of Vector options	44
Tax benefit of options exercised	4	665
Net cash (used in) provided by financing activities	(32,927)	(30,405)
Net (decrease) increase in cash and cash equivalents	(46,725)	(13,686)
Cash and cash equivalents, beginning of period	238,262	283,409
Cash and cash equivalents, end of period	191,537	269,723
Subsidiary Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	53,892	49,780
Cash flows from investing activities:
Sale of investment securities		17,792
Purchase of investment securities		(1,788)
Proceeds from sale or liquidation of long-term investments		0
Purchase of long-term investments	0
Investments in non-consolidated real estate businesses	0	0
Proceeds from sale of townhome		0
Distributions from non-consolidated real estate businesses	0	0
Increase in cash surrender value of life insurance policies	(47)	(119)
Decrease in restricted assets	1,015	48
Issuance of notes receivable	0	0
Investments in subsidiaries	0	0
Proceeds from sale of fixed assets	11
Capital expenditures	(1,442)	(2,617)
Net cash (used in) provided by investing activities	(463)	13,316
Cash flows from financing activities:
Proceeds from debt issuance	9,870	54
Deferred financing costs	(150)	0
Repayments of debt	(11,494)	(1,038)
Borrowings under revolver	236,595	216,843
Repayments on revolver	(258,064)	(244,076)
Capital contributions received	600	2,288
Intercompany dividends paid	(6,000)	(47,592)
Dividends and distributions on common stock	0	0
Proceeds from exercise of Vector options	0
Tax benefit of options exercised	0	0
Net cash (used in) provided by financing activities	(28,643)	(73,521)
Net (decrease) increase in cash and cash equivalents	24,786	(10,425)
Cash and cash equivalents, beginning of period	2,488	16,214
Cash and cash equivalents, end of period	27,274	5,789
Subsidiary Non-Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	2,682	595
Cash flows from investing activities:
Sale of investment securities		0
Purchase of investment securities		0
Proceeds from sale or liquidation of long-term investments		0
Purchase of long-term investments	0
Investments in non-consolidated real estate businesses	(25)	(1,672)
Proceeds from sale of townhome		11,635
Distributions from non-consolidated real estate businesses	740	2,165
Increase in cash surrender value of life insurance policies	0	0
Decrease in restricted assets	0	240
Issuance of notes receivable	0	0
Investments in subsidiaries	0	0
Proceeds from sale of fixed assets	0
Capital expenditures	(42)	(33)
Net cash (used in) provided by investing activities	673	12,335
Cash flows from financing activities:
Proceeds from debt issuance	0	373
Deferred financing costs	0	0
Repayments of debt	(32)	(406)
Borrowings under revolver	0	0
Repayments on revolver	0	0
Capital contributions received	58	40
Intercompany dividends paid	(2,814)	(12,235)
Dividends and distributions on common stock	0	0
Proceeds from exercise of Vector options	0
Tax benefit of options exercised	0	0
Net cash (used in) provided by financing activities	(2,788)	(12,228)
Net (decrease) increase in cash and cash equivalents	567	702
Cash and cash equivalents, beginning of period	173	202
Cash and cash equivalents, end of period	740	904
Consolidating Adjustments [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash (used in) provided by operating activities	(8,814)	(59,827)
Cash flows from investing activities:
Sale of investment securities		0
Purchase of investment securities		0
Proceeds from sale or liquidation of long-term investments		0
Purchase of long-term investments	0
Investments in non-consolidated real estate businesses	0	0
Proceeds from sale of townhome		0
Distributions from non-consolidated real estate businesses	0	0
Increase in cash surrender value of life insurance policies	0	0
Decrease in restricted assets	0	0
Issuance of notes receivable	0	0
Investments in subsidiaries	658	2,328
Proceeds from sale of fixed assets	0
Capital expenditures	0	0
Net cash (used in) provided by investing activities	658	2,328
Cash flows from financing activities:
Proceeds from debt issuance	0	0
Deferred financing costs	0	0
Repayments of debt	0	0
Borrowings under revolver	0	0
Repayments on revolver	0	0
Capital contributions received	(658)	(2,328)
Intercompany dividends paid	8,814	59,827
Dividends and distributions on common stock	0	0
Proceeds from exercise of Vector options	0
Tax benefit of options exercised	0	0
Net cash (used in) provided by financing activities	8,156	57,499
Net (decrease) increase in cash and cash equivalents	0	0
Cash and cash equivalents, beginning of period	0	0
Cash and cash equivalents, end of period	$ 0	$ 0