Accounts Payable and Other Liabilities (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Restructuring Reserve [Roll Forward]
Restructuring Costs Liability at December 31, 2012	$ 0
Restructuring Costs Incurred for the Year Ended December 31, 2013	4,660,000
Cash Payments for the Year Ended December 31, 2013	1,539,000
Restructuring Costs Liability at December 31, 2013	21,691,000
Total Cumulative Restructuring Costs Expected to Be Incurred	23,919,000
Office Closure
Restructuring Reserve [Roll Forward]
Restructuring charges	4,700,000
Severance - management and other personnel
Restructuring Reserve [Roll Forward]
Restructuring Costs Liability at December 31, 2012	0
Restructuring Costs Incurred for the Year Ended December 31, 2013	3,971,000
Cash Payments for the Year Ended December 31, 2013	1,539,000
Restructuring Costs Liability at December 31, 2013	21,691,000
Total Cumulative Restructuring Costs Expected to Be Incurred	23,230,000
Other
Restructuring Reserve [Roll Forward]
Restructuring Costs Liability at December 31, 2012	0
Restructuring Costs Incurred for the Year Ended December 31, 2013	689,000
Cash Payments for the Year Ended December 31, 2013	0
Restructuring Costs Liability at December 31, 2013	0
Total Cumulative Restructuring Costs Expected to Be Incurred	689,000
Parent Merger [Member]
Restructuring Reserve [Roll Forward]
Total Cumulative Restructuring Costs Expected to Be Incurred	$ 18,100,000