Related Party Transactions (Narrative) (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) h / yr item	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Mar. 31, 2014 USD ($)
Related Party Transaction [Line Items]
Outstanding accounts payable	$ 168,528,000	$ 170,199,000
AXIS Capital [Member]
Related Party Transaction [Line Items]
Outstanding note payable				$ 1,400,000
Due to related parties, current	1,000,000	1,200,000
Principal payments (including interest)	$ 300,000	300,000	$ 100,000
Weighted average interest rate	6.80%
Board of Directors Chairman [Member] | Aircraft Lease [Member]
Related Party Transaction [Line Items]
Number of related party transaction agreements | item	2
Number of leased aircrafts | item	2
Aircraft lease amount payable, per month	$ 9,766	15,834
Aircraft hours available each month under lease | h / yr	125
Cash payments	$ 270,000	187,000	$ 136,000
Outstanding accounts payable		$ 2,000