Internally Developed Software (Tables)

12 Months Ended

Dec. 31, 2015

Internally Developed Software

Schedule of components of internally developed software

			At December 31,
	Estimated Useful Life		2015		2014
Internally developed software	5	years	$	25,109	$	19,577
Less accumulated amortization				(15,212)		(12,554)
Internally developed software, net			$	9,897	$	7,023

Schedule of amortization expense

	Year Ended December 31,
	2015		2014		2013
Amortization expense	$	2,658	$	1,920	$	1,726