Commitments and Contingencies (Operating Leases - Narrative) (Details) (USD $)	12 Months Ended					12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Bud H. Harris [Member]	Apr. 01, 2007 Bud H. Harris [Member]	Dec. 31, 2013 George DiRado [Member]	Jan. 01, 2006 George DiRado [Member]	Dec. 31, 2013 Tecla Immobillare [Member]	Mar. 01, 2010 Tecla Immobillare [Member]	Dec. 31, 2013 Fanocle S.p.A. [Member]	Mar. 01, 2010 Fanocle S.p.A. [Member]	Dec. 31, 2013 Chelmsford Associates, LLC [Member]	Mar. 01, 2010 Chelmsford Associates, LLC [Member]
Operating Leased Assets [Line Items]
Operating leases, rental expense	$ 2,400,000	$ 2,700,000	$ 3,200,000
Operating lease, term				10 years		10 years		6 years		6 years		5 years 6 months
Operating lease, renewal term						5 years		6 years		6 years		5 years
Total lease payments over the lease term	4,606,000				2,000,000		2,100,000		900,000		700,000		1,500,000
Operating lease, improvement allowance					70,000
Operating lease, rent abatement													$ 146,000