Non-Qualified Deferred Compensation Plan (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Non Qualified Deferred Compensation Plan [Abstract]
Deferred compensation liability included in accounts payable and other liabilities	$ 29,176	$ 28,632

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

No definition available.

Name:	us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant