Investments in and Loans to Joint Ventures (Tables)

6 Months Ended

Jun. 30, 2013

Schedule of Equity Method Investments [Line Items]

Carrying amount of investments in and loans to joint ventures

The carrying amount of investments in and loans to joint ventures, which also represents ARI’s maximum exposure to loss with these joint ventures, are as follows:

	June 30, 2013		December 31, 2012
	(in thousands)
Carrying amount of investments in and loans to joint ventures
Ohio Castings	$	6,909	$	7,022
Axis	25,146		27,181
Amtek Railcar	9,479		10,333
Total investments in and loans to joint ventures	$	41,534	$	44,536

Ohio Castings [Member]

Schedule of Equity Method Investments [Line Items]

Summary of financial results of investee company

Summary financial results for Ohio Castings, the investee company, in total, are as follows:

	Three Months Ended   June 30,					Six Months Ended   June 30,
	2013			2012		2013			2012
	(in thousands)
Results of operations
Revenues	$	12,794		$	23,399	$	27,282		$	46,685
Gross profit	$	515		$	2,278	$	905		$	4,556
Net income (loss)	$	(116	)	$	2,428	$	(349	)	$	4,948

Axis [Member]

Schedule of Equity Method Investments [Line Items]

Summary of financial results of investee company

Summary financial results for Axis, the investee company, in total, are as follows:

	Three Months Ended   June 30,						Six Months Ended   June 30,
	2013			2012			2013			2012
	(in thousands)
Results of operations
Revenues	$	12,134		$	16,931		$	23,076		$	34,118
Gross profit	$	1,302		$	1,467		$	1,459		$	2,891
Income before interest	$	1,056		$	1,254		$	981		$	2,413
Net loss	$	(300	)	$	(206	)	$	(1,743	)	$	(529	)

Amtek Railcar [Member]

Schedule of Equity Method Investments [Line Items]

Summary of financial results of investee company

Summary financial results for Amtek Railcar, the investee company, are as follows:

	Three Months Ended   June 30,						Six Months Ended   June 30,
	2013			2012			2013			2012
	(in thousands)
Financial Results
Revenues	$	95		$	—		$	95		$	—
Gross profit (loss)	$	(17	)	$	—		$	(17	)	$	—
Loss before interest and taxes	$	(238	)	$	(435	)	$	(762	)	$	(934	)
Net loss	$	(1,375	)	$	(435	)	$	(1,942	)	$	(952	)