Severance and Related Benefits - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012
Postemployment Benefits [Abstract]
Severance and related benefits expense	$ 2,114

The charge against earnings for costs of severance and related benefits related to a voluntary termination under a separation agreement.

No definition available.

Name:	pcc_SeveranceAndRelatedBenefits
Namespace Prefix:	pcc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration