Related Party Transactions - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended							3 Months Ended		1 Months Ended	3 Months Ended		6 Months Ended						1 Months Ended		6 Months Ended			3 Months Ended		6 Months Ended			6 Months Ended			1 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Jun. 30, 2012 Related Party Receivables and Payables	Dec. 31, 2011 Related Party Receivables and Payables	Jun. 30, 2012 Related Party Receivables and Payables Minimum	Dec. 31, 2011 Related Party Receivables and Payables Minimum	Jun. 30, 2012 Related Party Receivables and Payables Maximum	Dec. 31, 2011 Related Party Receivables and Payables Maximum	Jun. 30, 2012 Related Party Receivables and Payables Other	Dec. 31, 2011 Related Party Receivables and Payables Other	Mar. 31, 2012 Real Property and Joint Ventures Transactions	Jun. 30, 2012 General and Administrative Related Party Transactions	Jun. 30, 2011 General and Administrative Related Party Transactions	Jun. 30, 2012 General and Administrative Related Party Transactions	Jun. 30, 2011 General and Administrative Related Party Transactions	Jun. 30, 2012 General and Administrative Related Party Transactions Noncancelable Operating Lease Agreements	Jun. 30, 2012 General and Administrative Related Party Transactions Minimum Noncancelable Operating Lease Agreements	Jun. 30, 2012 General and Administrative Related Party Transactions Maximum Noncancelable Operating Lease Agreements	Jun. 30, 2012 JFSCI	Aug. 31, 2011 JFSCI Related Party Receivables and Payables	May 31, 2011 JFSCI Related Party Receivables and Payables	Jun. 30, 2012 JFSCI Related Party Receivables and Payables	Jun. 30, 2011 JFSCI Related Party Receivables and Payables	Dec. 31, 2011 JFSCI Related Party Receivables and Payables	Jun. 30, 2012 JFSCI General and Administrative Related Party Transactions	Jun. 30, 2011 JFSCI General and Administrative Related Party Transactions	Jun. 30, 2012 JFSCI General and Administrative Related Party Transactions	Jun. 30, 2011 JFSCI General and Administrative Related Party Transactions	Jun. 30, 2012 Unconsolidated Joint Ventures Maximum	Jun. 30, 2012 Unconsolidated Joint Ventures Related Party Receivables and Payables	Dec. 31, 2011 Unconsolidated Joint Ventures Related Party Receivables and Payables	Dec. 31, 2011 SCLLC Related Party Receivables and Payables	Mar. 31, 2012 SCLLC Real Property and Joint Ventures Transactions	Mar. 31, 2012 SHLP Real Property and Joint Ventures Transactions	Jun. 30, 2012 SHLP Real Property and Joint Ventures Transactions	May 31, 2012 SHLP Real Property and Joint Ventures Transactions	Jun. 30, 2012 Joint Ventures Real Property and Joint Ventures Transactions	Jun. 30, 2011 Joint Ventures Real Property and Joint Ventures Transactions	Jun. 30, 2012 Joint Ventures Real Property and Joint Ventures Transactions	Jun. 30, 2011 Joint Ventures Real Property and Joint Ventures Transactions
Related Party Transaction [Line Items]
Accrued interest monthly based on Prime less																								2.05%
Proceeds from notes receivable																								$ 75,000,000
Contribution of assets through secured note																								41,500,000
Convertible notes receivable																								38,900,000
Bearing interest from notes receivable								2.50%	2.50%	4.20%	4.20%													4.00%									8.00%
Receivable maturity date																								May 15, 2019
Prepayment on notes																							7,700,000		1,900,000	6,600,000
Notes receivable	20,482,000		20,482,000		21,013,000	1,400,000	900,000					7,700,000	8,300,000												24,000,000		25,400,000						300,000	25,600,000	25,200,000
Notes receivable, maturity year																																	2020
Internal rate of return																																	17.50%
Reserves for notes receivable from other related parties	12,734,000		12,734,000		12,697,000							12,700,000	12,700,000
Notes receivable, maturity periods												November 2012 through April 2021
Notes receivable stated interest rate												0.75%	0.75%
Payables to related parties	4,326,000		4,326,000		2,343,000	4,300,000	2,300,000
Ownership interest																						96.00%										50.00%					58.00%		16.70%
Distribution payable to non-controlling interest	3,073,000		3,073,000		3,344,000																																	3,100,000
Distribution to non-controlling interest			345,000	90,000	100,000																																	100,000
Estimated fair value assets received																																					30,800,000
Distributed assets and liabilities																																					24,000,000
Cash from distribution																																					2,200,000
Secured notes receivable	3,928,000		3,928,000		3,566,000																																3,000,000
Inventory																																					20,000,000
Other liabilities	216,096,000		216,096,000		199,651,000																																1,200,000
Reduction in assets																																				41,800,000
Reduction in liabilities																																				(2,000,000)
Reduction in equity																																					(11,600,000)
Reduction in equity of non-controlling interest														28,200,000
General and administrative expenses	11,573,000	8,265,000	19,824,000	16,488,000																								4,500,000	3,300,000	8,400,000	7,300,000									700,000	800,000	1,700,000	1,700,000
Management fees																																								100,000	300,000	200,000	600,000
Lease terms																				5 years	10 years
Lease renewal term																			5 years
Related party rental expense															$ 100,000	$ 200,000	$ 300,000	$ 400,000