Schedule II - Valuation and Qualifying Accounts (Details) (Allowance for Doubtful Accounts [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 417		$ 399		$ 387
Charged to Cost and Expenses	855	[1]	67		12
Deductions	(599)	[2]	(49)	[2]	0	[2]
Balance at End of Year	$ 673		$ 417		$ 399

[1] The 2013 increase is primarily related to the consolidation of the New Zealand JV.

[2] Primarily payments and adjustments to required reserves.