Commitments and Contingencies Schedule of Contributions made to Multiemployer Plans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Multiemployer Plans [Line Items]
Contributions	$ 4,752		$ 2,941		$ 2,814
Pension Plans [Member]
Multiemployer Plans [Line Items]
Contributions	1,201	[1]	768	[1]	750	[1]
Pension Plans [Member] | Multiemployer Plan, Individually Insignificant Multiemployer Plans [Member]
Multiemployer Plans [Line Items]
Contributions	400		300		400
Health Plans [Member]
Multiemployer Plans [Line Items]
Contributions	3,319	[2]	2,013	[2]	1,899	[2]
Health Plans [Member] | Multiemployer Plan, Individually Insignificant Multiemployer Plans [Member]
Multiemployer Plans [Line Items]
Contributions	800		500		500
Other [Member]
Multiemployer Plans [Line Items]
Contributions	232	[3]	160	[3]	165	[3]
Other [Member] | Multiemployer Plan, Individually Insignificant Multiemployer Plans [Member]
Multiemployer Plans [Line Items]
Contributions	$ 50		$ 80		$ 50

[1] ension plans include $0.4 million, $0.3 million and $0.4 million for the years ended 2013, 2012 and 2011, respectively, from multiemployer plans not discussed above.

[2] Health plans include $0.8 million, $0.5 million and $0.5 million for the years ended 2013, 2012 and 2011, respectively, from multiemployer plans not discussed above.

[3] ther includes $0.05 million, $0.08 million and $0.05 million for the years ended 2013, 2012 and 2011, respectively, in connection with One Grand Central Place and 250 West 57th Street for multiemployer plans not discussed above for union costs which were not itemized between pension and health plans.