Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 238	$ 13,618
Currency translation adjustment, net of tax	2,711	(1,459)
Comprehensive income	2,949	12,159
Less: Net income allocated to noncontrolling interests	0	0
Comprehensive income allocated to common stockholders	$ 2,949	$ 12,159