Reconciliation of Segment Assets to Consolidated Total Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	$ 4,209,007	$ 3,733,687	$ 3,924,103
Operating Segments
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	3,577,768	3,211,466	3,095,752
Corporate, Non-Segment
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	620,811	514,258	767,231
Assets of Businesses Divested
Segment Reporting Asset Reconciling Item [Line Items]
Total assets			53,218
Assets Held-for-sale
Segment Reporting Asset Reconciling Item [Line Items]
Total assets	$ 10,428	$ 7,963	$ 7,902