Name:	pgn_MergerCostIndemnification
Namespace Prefix:	pgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Discloses the quarterly dividend that may be paid by the acquiree without consent of the acquirer.

No definition available.

Name:	pgn_MergerDividendRestriction
Namespace Prefix:	pgn_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Discloses the number of shares of the acquirer's stock that each share of the acquiree's stock will be converted into in conjuction with a merger.

No definition available.

Name:	pgn_MergerShareExchangeRatio
Namespace Prefix:	pgn_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Amount the acquiree may be required to pay the acquirer if the merger is terminated in certain circumstances.

No definition available.

Name:	pgn_MergerTerminationFeeAcquiree
Namespace Prefix:	pgn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount the acquirer may be required to pay the acquiree if the merger is terminated in certain circumstances.

No definition available.