Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Estimate of Future Net Minimum Lease Payments

An estimate of future net minimum lease payments in each of the next five years ending December 31, and the periods thereafter, is as follows:

	Amount
2013	$	5,215
2014		5,188
2015		5,142
2016		—
2017		—
All later years		—
	$	15,545