Income Taxes (Details 2) (USD $)	10 Months Ended
	Nov. 15, 2010	Dec. 31, 2012	Dec. 31, 2011
Operating loss carryforwards
Amount debited to additional paid-in capital for tax shortfalls associated with share-based compensation	$ 400,000
Deferred tax assets:
Accounts receivable		9,191,000	9,611,000
Property and equipment		922,000	613,000
Workers' compensation costs		12,043,000	12,663,000
Compensated absences		5,081,000	4,219,000
Share-based compensation		2,425,000	930,000
Other insurance reserves		11,835,000	12,172,000
Unfavorable lease adjustments		857,000	1,201,000
Other liabilities and reserves		2,174,000	1,868,000
Deferred state income tax net operating loss carryforwards		3,233,000	5,117,000
Deferred tax credits, foreign tax credit carryforwards and other		2,123,000	1,420,000
Total gross deferred tax assets		49,884,000	49,814,000
Less valuation allowance		3,659,000	5,323,000
Net deferred tax assets		46,225,000	44,491,000
Deferred tax liabilities:
Revenue adjustments		5,651,000	7,355,000
Property and equipment		5,971,000	7,308,000
Goodwill and other intangible assets		122,031,000	113,295,000
Deferred rents		378,000	1,014,000
Other		858,000	121,000
Total deferred tax liabilities		134,889,000	129,093,000
Net deferred tax liability		(88,664,000)	(84,602,000)
Classified as follows:
Current deferred income tax assets		17,589,000	13,668,000
Noncurrent deferred income tax liability		(106,253,000)	(98,270,000)
Net deferred tax liability		(88,664,000)	(84,602,000)
State
Operating loss carryforwards
Net operating loss carryforwards		68,000,000
Foreign
Operating loss carryforwards
Tax credit carryforwards		$ 900,000