Accumulated Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2015

Accumulated Other Comprehensive Income [Abstract]

Schedule of Accumulated Other Comprehensive Income [Table Text Block]

				Foreign		Accumulated
		Net unrealized		currency		other
		investment		translation		comprehensive
		gains		adjustment		income
Six months ended June 30, 2015
Balance at December 31, 2014		$	169,984	$	5,030	$	175,014
Other comprehensive loss			(59,239)		(5,063)		(64,302)
	Balance at June 30, 2015	$	110,745	$	(33)	$	110,712
Three months ended June 30, 2015
Balance at March 31, 2015		$	174,217	$	(1,955)	$	172,262
Other comprehensive income (loss)			(63,472)		1,922		(61,550)
	Balance at June 30, 2015	$	110,745	$	(33)	$	110,712