Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Significant Accounting Policies [Abstract]

Provisions for contractual discounts and uncompensated care

	2012			2011
Gross billings		100	%		100	%
Provision for contractual discounts		38	%		36	%
Provision for uncompensated care		33	%		34	%

Schedule of provisions for contractual discounts and estimated uncompensated care as percentage of gross billings

	Revenue Year Ended December 31,
	2012			2011			2010
Gross billings		100	%		100	%		100	%
Provision for contractual discounts		56	%		54	%		52	%
Provision for uncompensated care		11	%		11	%		11	%

Schedule of net revenue attributable to Medicaid, Medicare insurance and self pay as percentage of net Air medical revenues

	Year Ended December 31,
	2012			2011			2010
Medicaid		9	%		15	%		16	%
Medicare		21	%		24	%		22	%
Insurance		69	%		60	%		61	%
Self Pay		1	%		1	%		1	%