Discontinued Operations (Narrative) (Detail) (USD $)	3 Months Ended								12 Months Ended			0 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended		12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Aug. 31, 2013 Globetec [Member]	Dec. 31, 2013 Globetec [Member]	Dec. 31, 2012 Globetec [Member]	Dec. 31, 2011 Globetec [Member]	Dec. 31, 2013 Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member]	Dec. 31, 2013 Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member]	Dec. 31, 2013 Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Surety Bond [Member]	Dec. 31, 2013 Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Surety Bond [Member] Forecast [Member]	Dec. 31, 2013 DirectStar [Member]	Dec. 31, 2012 DirectStar [Member]	Dec. 31, 2011 DirectStar [Member]	Dec. 31, 2013 Original $2.0 Million Note Receivable [Member] Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member]	Dec. 31, 2013 Original $2.0 Million Note Receivable [Member] Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member]	Aug. 31, 2013 Original $2.0 Million Note Receivable [Member] Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member]	Dec. 31, 2013 Original $5.6 Million Note Receivable [Member] Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member]	Dec. 31, 2013 Original $5.6 Million Note Receivable [Member] Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member]	Aug. 31, 2013 Original $5.6 Million Note Receivable [Member] Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member]	Dec. 31, 2013 Original $5.6 Million Note Receivable [Member] Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member] Maximum [Member]	Dec. 31, 2013 Extended Maturity [Member] Original $5.6 Million Note Receivable [Member] Globetec [Member] Variable Interest Entity, Not Primary Beneficiary [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operations description													In September 2012, the Company's board of directors approved a plan of sale for its Globetec business. Accordingly, Globetec's projects and assets are reflected as assets and liabilities of discontinued operations in the consolidated balance sheets for all periods presented, and Globetec's results of operations are presented as discontinued operations in the consolidated statements of operations for all periods presented. Effective August 31, 2013, the Company sold all of its membership interests in Globetec for nominal consideration and retained certain contingent assets, including two pre-closing intercompany loans of $2.0 million and $5.6 million, all of which remained outstanding as of December 31, 2013.							In May 2012, Red Ventures exercised its option to acquire from the Company the equity interests in DirectStar, which provides marketing and sales services on behalf of DIRECTV®. The Company consummated the sale of DirectStar to Red Ventures in June 2012 for a net sale price of $98.9 million in cash. DirectStar is presented as a discontinued operation in the Company’s consolidated financial statements for all periods presented.
Discontinued operation, membership interests remaining												0.00%
Disposal date													Aug. 31, 2013							Jun. 30, 2012
Variable interest entity, nonconsolidated, carrying amount, loan to entity																							$ 2,000,000	$ 2,000,000	$ 2,000,000	$ 5,600,000	$ 5,600,000	$ 5,600,000
Loan, variable interest entity, nonconsolidated, interest rate																							0.25%			5.00%				10.00%
Loan, variable interest entity, nonconsolidated, maturity date																								Oct. 03, 2014			Oct. 03, 2014		Oct. 03, 2015
Discontinued operations, status at latest balance sheet date																	The sale agreement provided that the Company would retain certain contingent assets and liabilities of the Globetec business, which are reported in discontinued operations
Variable interest entity, ownership percentage																0.00%
Outstanding bonds, amount																		15,900,000
Estimated cost to complete bonded projects																			1,000,000
Net sale price																					98,900,000
Income (loss) from discontinued operations, net of tax	$ (1,300,000)	$ (3,700,000)	$ (500,000)	$ (900,000)	$ (1,400,000)	$ (9,300,000)	$ (1,100,000)	$ 2,500,000	$ (6,456,000)	$ (9,223,000)	$ 8,516,000		$ (6,500,000)	$ (12,900,000)	$ (5,200,000)						$ 3,700,000	$ 13,700,000