Lease Termination Exit Costs (Details) (USD $) In Thousands	3 Months Ended
	Jun. 30, 2011
Lease termination exit costs
Balance at March 31,2011	$ 0
Lease Termination Exit costs recorded	10,727,462
Reclassification of purchase accounting lease obligation	4,351,433
Cash payment	(867,599)
Adjustments for non-cash items	(1,124,129)
Ending accrual Balance at June 30,2011	13,087,167
Operating Lease Obligation [Member]
Lease termination exit costs
Balance at March 31,2011	0
Lease Termination Exit costs recorded	7,214,225
Reclassification of purchase accounting lease obligation	4,351,433
Cash payment	(662,403)
Adjustments for non-cash items	(392,589)
Ending accrual Balance at June 30,2011	10,510,666
Other Facility Related Costs [Member]
Lease termination exit costs
Balance at March 31,2011	0
Lease Termination Exit costs recorded	2,781,697
Cash payment	(205,196)
Ending accrual Balance at June 30,2011	2,576,501
Assets write-Downs [Member]
Lease termination exit costs
Balance at March 31,2011	0
Lease Termination Exit costs recorded	731,540
Adjustments for non-cash items	(731,540)
Ending accrual Balance at June 30,2011	$ 0