Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 26,382	$ 7,406
Accounts receivable, net of allowance	877,131	658,528
Inventories	83,939	88,914
Deferred tax assets, net	3,276	10,596
Prepaid expenses and deposits	30,550	21,001
Other current assets	7,199	11,751
Current assets of discontinued operations	18,591	30,608
Total current assets	1,047,068	828,804
Property and equipment, net	350,355	263,007
Goodwill	820,341	714,760
Other intangible assets, net	137,100	110,707
Available for sale auction rate securities	14,408	13,565
Other assets	31,014	42,167
Long-term assets of discontinued operations	7,648	121,695
Total assets	2,407,934	2,094,705
Current liabilities:
Current maturities of long-term debt	52,596	34,050
Accounts payable	394,060	303,687
Accrued salaries and wages	31,358	37,561
Accrued taxes payable	17,465	5,383
Accrued insurance	21,754	19,304
Other accrued expenses	11,550	10,629
Acquisition-related contingent consideration, current	19,216	17,051
Billings in excess of costs and earnings	123,435	108,433
Other current liabilities	29,699	27,073
Current liabilities of discontinued operations	4,569	29,274
Total current liabilities	705,702	592,445
Acquisition-related contingent consideration	135,712	75,925
Long-term debt	546,323	460,690
Deferred tax liabilities, net	119,388	122,614
Other liabilities	38,874	31,824
Total liabilities	1,545,999	1,283,498
Commitments and contingencies (See Note 14)
Shareholders' equity:
Preferred stock, $1.00 par value; authorized shares - 5,000,000; issued and outstanding shares - none	0	0
Common stock, $0.10 par value; authorized shares - 145,000,000; issued shares - 85,915,552 and 85,162,527 as of December 31, 2012 and 2011, respectively	8,592	8,516
Capital surplus	803,166	792,096
Retained earnings	200,915	93,489
Accumulated other comprehensive loss	(5,501)	(7,946)
Treasury stock, at cost; shares as of December 31, 2012 – 9,467,286; shares as of December 31, 2011 - 4,593,663	(150,000)	(75,000)
Total MasTec, Inc. shareholders' equity	857,172	811,155
Non-controlling interests	4,763	52
Total shareholders' equity	861,935	811,207
Total liabilities and shareholders' equity	$ 2,407,934	$ 2,094,705