Condensed Consolidating Financial Information Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	$ (39,084)	$ (9,917)
Cash flows from investing activities:
Sale of investment securities	35,009	6,582
Purchase of investment securities	(36,763)	(5,000)
Purchase of long-term investments	(1,000)	0
Investments in non-consolidated real estate businesses	(4,068)	(1,354)
Investments in consolidated real estate businesses	0	7,617
Distributions from non-consolidated real estate businesses	2,575	0
Increase in cash surrender value of life insurance policies	(47)	(68)
Increase in restricted assets	(390)	7
Issuance of notes receivable	0
Investments in subsidiaries	0	0
Capital expenditures	(6,424)	(3,557)
Repayments of notes receivable	933	0
Net cash used in investing activities	(10,175)	(11,007)
Cash flows from financing activities:
Proceeds from debt issuance	260,508	450,000
Deferred financing costs	(8,210)	(11,447)
Repayments of debt	(2,215)	(416,904)
Borrowings under revolver	196,842	214,762
Repayments on revolver	(211,520)	(233,691)
Capital contributions received	0	0
Intercompany dividends paid	0	0
Dividends and distributions on common stock	(40,865)	(35,749)
Proceeds from exercise of Vector options	1,385	0
Tax benefit of options exercised	344	0
Net cash provided by (used in) financing activities	196,269	(33,029)
Net increase (decrease) in cash and cash equivalents	147,010	(53,953)
Cash and cash equivalents, beginning of period	234,466	405,855
Cash and cash equivalents, end of period	381,476	351,902
Parent/Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	(36,859)	(36,170)
Cash flows from investing activities:
Sale of investment securities	35,009	0
Purchase of investment securities	(36,763)	0
Purchase of long-term investments	(1,000)
Investments in non-consolidated real estate businesses	0	0
Investments in consolidated real estate businesses		0
Distributions from non-consolidated real estate businesses	0
Increase in cash surrender value of life insurance policies	0	(21)
Increase in restricted assets	300	8
Issuance of notes receivable	(35,000)
Investments in subsidiaries	(7,081)	(15,777)
Capital expenditures	0	(1,315)
Repayments of notes receivable	10,933
Net cash used in investing activities	(33,602)	(17,105)
Cash flows from financing activities:
Proceeds from debt issuance	258,750	450,000
Deferred financing costs	(8,210)	(11,447)
Repayments of debt	0	(415,000)
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	(40,865)	(35,749)
Proceeds from exercise of Vector options	1,385
Tax benefit of options exercised	344
Net cash provided by (used in) financing activities	211,404	(12,196)
Net increase (decrease) in cash and cash equivalents	140,943	(65,471)
Cash and cash equivalents, beginning of period	151,342	401,344
Cash and cash equivalents, end of period	292,285	335,873
Subsidiary Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	1,776	40,891
Cash flows from investing activities:
Sale of investment securities	0	6,582
Purchase of investment securities	0	(5,000)
Purchase of long-term investments	0
Investments in non-consolidated real estate businesses	0	0
Investments in consolidated real estate businesses		0
Distributions from non-consolidated real estate businesses	0
Increase in cash surrender value of life insurance policies	(47)	(47)
Increase in restricted assets	(1)	(1)
Issuance of notes receivable	0
Investments in subsidiaries	0	0
Capital expenditures	(4,551)	(1,937)
Repayments of notes receivable	0
Net cash used in investing activities	(4,599)	(403)
Cash flows from financing activities:
Proceeds from debt issuance	36,758	0
Deferred financing costs	0	0
Repayments of debt	(12,120)	(1,870)
Borrowings under revolver	196,842	214,762
Repayments on revolver	(211,520)	(233,691)
Capital contributions received	350	5,800
Intercompany dividends paid	0	(14,000)
Dividends and distributions on common stock	0	0
Proceeds from exercise of Vector options	0
Tax benefit of options exercised	0
Net cash provided by (used in) financing activities	10,310	(28,999)
Net increase (decrease) in cash and cash equivalents	7,487	11,489
Cash and cash equivalents, beginning of period	11,812	3,776
Cash and cash equivalents, end of period	19,299	15,265
Subsidiary Non-Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	1,880	900
Cash flows from investing activities:
Sale of investment securities	0	0
Purchase of investment securities	0	0
Purchase of long-term investments	0
Investments in non-consolidated real estate businesses	(4,068)	(1,354)
Investments in consolidated real estate businesses		7,617
Distributions from non-consolidated real estate businesses	2,575
Increase in cash surrender value of life insurance policies	0	0
Increase in restricted assets	(689)	0
Issuance of notes receivable	0
Investments in subsidiaries	0	0
Capital expenditures	(1,873)	(305)
Repayments of notes receivable	0
Net cash used in investing activities	(4,055)	(9,276)
Cash flows from financing activities:
Proceeds from debt issuance	0	0
Deferred financing costs	0	0
Repayments of debt	(95)	(34)
Borrowings under revolver	0	0
Repayments on revolver	0	0
Capital contributions received	6,731	9,977
Intercompany dividends paid	(5,881)	(1,538)
Dividends and distributions on common stock	0	0
Proceeds from exercise of Vector options	0
Tax benefit of options exercised	0
Net cash provided by (used in) financing activities	755	8,405
Net increase (decrease) in cash and cash equivalents	(1,420)	29
Cash and cash equivalents, beginning of period	71,312	735
Cash and cash equivalents, end of period	69,892	764
Consolidating Adjustments [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash used in operating activities	(5,881)	(15,538)
Cash flows from investing activities:
Sale of investment securities	0	0
Purchase of investment securities	0	0
Purchase of long-term investments	0
Investments in non-consolidated real estate businesses	0	0
Investments in consolidated real estate businesses		0
Distributions from non-consolidated real estate businesses	0
Increase in cash surrender value of life insurance policies	0	0
Increase in restricted assets	0	0
Issuance of notes receivable	35,000
Investments in subsidiaries	7,081	15,777
Capital expenditures	0	0
Repayments of notes receivable	(10,000)
Net cash used in investing activities	32,081	15,777
Cash flows from financing activities:
Proceeds from debt issuance	(35,000)	0
Deferred financing costs	0	0
Repayments of debt	10,000	0
Borrowings under revolver	0	0
Repayments on revolver	0	0
Capital contributions received	(7,081)	(15,777)
Intercompany dividends paid	5,881	15,538
Dividends and distributions on common stock	0	0
Proceeds from exercise of Vector options	0
Tax benefit of options exercised	0
Net cash provided by (used in) financing activities	(26,200)	(239)
Net increase (decrease) 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