Summary of Significant Accounting Policies (Other Expense (Income), Net) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other expense (income), net [Line Items]
Write-off of deposits and pre-acquisition costs	$ 17,157	$ 5,021	$ 6,099
Loss on debt retirements	657	0	8,584
Amortization of intangible assets	13,800	12,900	13,033
Equity in (earnings) loss of unconsolidated entities	(8,337)	(7,355)	(8,400)
Interest income	(3,236)	(3,107)	(4,632)
Interest expense	686	788	849
Miscellaneous, net	16,444	6,653	1,420
Other expense, net	48,814	17,363	26,736
Charges related to contractual dispute	15,000	20,000
Homebuilding [Member]
Other expense (income), net [Line Items]
Lease exit and related costs	11,643	2,463	9,609
Equity in (earnings) loss of unconsolidated entities	$ (7,806)	$ (7,355)	$ (8,226)