Notes and Contracts Payable (Schedule of Notes and Contracts Payable) (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified		12 Months Ended			12 Months Ended
	Jan. 29, 2013	Dec. 31, 2013 4.3% senior unsecured notes	Dec. 31, 2013 Line of Credit	Dec. 31, 2012 Line of Credit	Dec. 31, 2013 Trust Deed Notes	Dec. 31, 2012 Trust Deed Notes	Dec. 31, 2013 Other Notes and Contracts Payable	Dec. 31, 2012 Other Notes and Contracts Payable
Debt Instrument [Line Items]
Senior unsecured notes expire date		Feb. 01, 2023
Debt instrument unamortized discount amount		$ 837
Weighted-average interest rate	4.345%	4.35%		2.21%	5.42%	5.44%	2.96%	2.84%
Line of credit borrowings due, date			Apr. 17, 2016
Maturity year					2032	2032
Debt collateralized by land and buildings					$ 55,206	$ 58,244
Maturity year							2020	2020