Certain Balance Sheet Components Certain Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2013

Balance Sheet Related Disclosures [Abstract]

Accounts Receivable, Net [Table Text Block]

Accounts receivable, net	March 31, 2013		December 31, 2012
	(in thousands)
Trade receivables (net of allowance of $6,144 and $7,372)	$	318,223	$	329,352
Unbilled receivables	38,005		45,974
Total accounts receivable, net	$	356,228	$	375,326

Allowance for Credit Losses on Financing Receivables [Table Text Block]

Allowance for doubtful account activity	Three Months Ended March 31,
	2013			2012
	(in thousands)
Beginning balance	$	7,372		$	6,049
Provision (release) of doubtful accounts, net	(904		)	(60		)
Accounts written-off	(105		)	(239		)
Effects of change in exchange rates	(219		)	233
Ending balance	$	6,144		$	5,983

Inventories [Table Text Block]

Inventories	March 31, 2013		December 31, 2012
	(in thousands)
Materials	$	102,654	$	92,038
Work in process	11,846		12,568
Finished goods	67,954		66,113
Total inventories	$	182,454	$	170,719

Property, Plant, and Equipment, Net [Table Text Block]

Property, plant, and equipment, net	March 31, 2013			December 31, 2012
	(in thousands)
Machinery and equipment	$	284,291		$	287,791
Computers and software	85,958			84,980
Buildings, furniture, and improvements	141,653			146,191
Land	24,518			25,318
Construction in progress, including purchased equipment	30,108			26,097
Total cost	566,528			570,377
Accumulated depreciation	(317,916		)	(315,165		)
Property, plant, and equipment, net	$	248,612		$	255,212

Depreciation Expense and Capitalized interest [Table Text Block]

Depreciation expense and capitalized interest	Three Months Ended March 31,
	2013		2012
	(in thousands)
Depreciation expense	$	14,013	$	15,314
Capitalized interest	43		—

In conjunction with the upgrade of our global enterprise resource planning software systems, we have capitalized $12.3 million within construction in progress. Amounts capitalized include internal labor costs and related benefits, software, third-party consulting fees, and $43,000 of interest.