Equity Method Investments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended			3 Months Ended		6 Months Ended					3 Months Ended		6 Months Ended				1 Months Ended	3 Months Ended	6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Jun. 30, 2013 WesPac	Jun. 30, 2012 WesPac	Jun. 30, 2013 WesPac	Jun. 30, 2012 WesPac	Dec. 31, 2012 WesPac	Jul. 01, 2010 WesPac	Jul. 01, 2010 WesPac Kealine	Jun. 30, 2013 Bernard	Jun. 30, 2012 Bernard	Jun. 30, 2013 Bernard	Jun. 30, 2012 Bernard	Dec. 31, 2012 Bernard	Dec. 31, 2009 Bernard	Dec. 31, 2012 Alvah, Inc.	Jun. 30, 2013 Alvah, Inc.	Jun. 30, 2013 Alvah, Inc.	Nov. 17, 2012 Alvah, Inc.	Jun. 30, 2013 Alvah, Inc. ARB	Jun. 30, 2012 Alvah, Inc. ARB	Jun. 30, 2013 Alvah, Inc. ARB	Jun. 30, 2012 Alvah, Inc. ARB	Jun. 30, 2013 Alvah, Inc. Q3C	Jun. 30, 2012 Alvah, Inc. Q3C	Jun. 30, 2013 Alvah, Inc. Q3C	Jun. 30, 2012 Alvah, Inc. Q3C
Equity method investments
Membership interest (as a percent)											50.00%	50.00%						30.00%				49.00%
Balance sheet data
Assets						$ 16,176		$ 16,176		$ 16,896			$ 22		$ 22		$ 592		$ 2,177	$ 3,009	$ 3,009
Liabilities						773		773		1,063			22		22		86		1,208	1,477	1,477
Net assets						15,403		15,403		15,833							506		969	1,532	1,532
Company's equity investment	12,724		12,724		12,813	11,248		11,248		11,463							150		1,200	1,476	1,476
Earnings data:
Revenue						50	111	89	511					499		3,934				3,292	6,008
Expenses						288	428	519	644				16	126	16	198				3,474	5,445
Earnings before taxes						(238)	(317)	(430)	(133)				(16)	373	(16)	3,736				(182)	563
Company's equity in earnings	(213)	(47)	56	1,054		(119)	(159)	(215)	(67)				(5)	112	(5)	1,121				(89)	276
Cost of investment																		300
Amount distributed															490	4,200			200
Share in distribution			145	1,260											145	1,260			98
Payments made to equity method investee																							$ 1,423	$ 908	$ 2,909	$ 2,153	$ 0	$ 115	$ 212	$ 233