CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 52,054	$ 40,757
Accounts receivable, less allowance for doubtful accounts of $4,460 and $6,333, respectively	267,470	256,959
Other receivables	16,373	12,376
Inventories	8,430	9,638
Prepaid expenses and other	24,209	25,037
Costs and estimated earnings in excess of billings	28,122	26,204
Assets related to discontinued operations	339	1,582
Total current assets	396,997	372,553
PROPERTY AND EQUIPMENT, NET	46,861	41,416
GOODWILL	114,588	114,588
IDENTIFIABLE INTANGIBLE ASSETS, NET	37,383	44,515
OTHER NONCURRENT ASSETS	5,993	7,682
Total assets	601,822	580,754
CURRENT LIABILITIES:
Current maturities of long-term debt		300
Current maturities of notes to former owners	2,000
Accounts payable	100,825	100,641
Accrued compensation and benefits	44,093	36,892
Billings in excess of costs and estimated earnings	64,588	73,814
Accrued self-insurance expense	29,398	29,096
Other current liabilities	28,168	27,077
Liabilities related to discontinued operations	366	767
Total current liabilities	269,438	268,587
LONG-TERM DEBT, NET OF CURRENT MATURITIES		2,100
NOTES TO FORMER OWNERS, NET OF CURRENT MATURITIES		5,000
DEFERRED INCOME TAX LIABILITIES	9,941	7,954
OTHER LONG-TERM LIABILITIES	8,421	9,807
Total liabilities	287,800	293,448
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Preferred stock, $.01 par, 5,000,000 shares authorized, none issued and outstanding
Common stock, $.01 par, 102,969,912 shares authorized, 41,123,365 and 41,123,365 shares issued, respectively	411	411
Treasury stock, at cost, 3,488,438 and 3,879,299 shares, respectively	(37,468)	(41,012)
Additional paid-in capital	318,123	317,534
Retained earnings (deficit)	14,768	(6,528)
Comfort Systems USA, Inc. stockholders' equity	295,834	270,405
Noncontrolling interests	18,188	16,901
Total stockholders' equity	314,022	287,306
Total liabilities and stockholders' equity	$ 601,822	$ 580,754