Segments - Depreciation and Amortization Expense (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Segment Reporting Information [Line Items] | |||
Depreciation and amortization expense | $ 107,504 | $ 98,288 | $ 92,004 |
Operating Segments [Member] | Product Development [Member]
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Segment Reporting Information [Line Items] | |||
Depreciation and amortization expense | 82,047 | 68,825 | 68,029 |
Operating Segments [Member] | Integrated Healthcare Services [Member]
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Segment Reporting Information [Line Items] | |||
Depreciation and amortization expense | 20,475 | 24,366 | 19,785 |
Corporate, Non-Segment [Member]
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Segment Reporting Information [Line Items] | |||
Depreciation and amortization expense | $ 4,982 | $ 5,097 | $ 4,190 |